After evaluating more than ten HR platforms, OPENS chose Sloneek to run proper 360 reviews, manage the full employee lifecycle, and give HR and managers better visibility into team collaboration.
If you are the person responsible for performance reviews, this will sound familiar: the reviews keep slipping down the priority list. The platform you have makes simple things complicated. You suspect a single annual review from one manager is not telling you the truth about how your teams actually work, but setting up something better feels like a project you do not have time for.
That is exactly where Milica Radošević was before she found Sloneek. Here is how OPENS went from manual processes to two complete 360 cycles the whole team actually engaged with, set up by one person, in about a month, with no onboarding fee.
“Sloneek was intuitive from day one. Even when I could not figure something out, I could try things and see what felt right.”— Milica Radošević, former HR Manager, OPENS
Starting without an HR platform
Before choosing Sloneek, OPENS had no dedicated HR system in place. Milica was managing everything manually. Her requirements were clear: a platform intuitive enough to use without a manual, transparent on price, and genuinely capable of running proper 360 reviews. Not a workaround dressed up as a feature.
Putting off performance reviews has a real cost
Performance management is often the first thing teams postpone. But every cycle you skip, you lose visibility into who’s performing, who needs support, and how teams actually work together. For an organization running cross-functional projects with overlapping roles, a single annual review from one manager misses most of what matters.
Milica wanted to see how people experienced working with each other, compare results across cycles, and turn those results into action rather than a filed report.
“The biggest value for me is the performance reviews and the AI reports.”— Milica Radošević, former HR Manager, OPENS
AI reports are generated by Sloneek Intelligence, Sloneek’s built-in AI layer.
10+ platforms evaluated: Sloneek was the only clear fit
Milica compared more than ten platforms: Zoho, Orange HRM, CultureAmp, BambooHR, PeopleForce, Spidergap, Lattice, and others. The evaluation came down to fit and functionality first, with total cost as an additional factor.
Several platforms fell short on usability or lacked the performance review functionality OPENS needed. Others combined limited fit with onboarding fees that were hard to justify on top of everything else.
Sloneek covered all the bases: the 360 review functionality was there, the interface was intuitive from day one, and the pricing was transparent with no onboarding fee and direct support rather than a ticket queue.
“The onboarding fee for other platforms can be a third of the total cost. Sloneek didn’t have that, and that made a real difference.” — Milica Radošević, former HR Manager, OPENS
Live in about a month, set up entirely in-house
Milica designed the whole 360 process herself: competencies, questions, who reviewed whom. Getting the organizational structure right before any data went in took real thought, but the platform never slowed her down. No consultants, no onboarding package, no waiting on a vendor’s implementation queue.
Adoption without the usual resistance
When results came back, people paid attention. Some had been skeptical. Change always meets resistance, but once the team saw what structured feedback revealed about their own work and their colleagues’, the tone shifted.
“Some people didn’t love the idea of digitalization. But once they saw the value they got from the reviews, everything changed.” — Milica Radošević, former HR Manager, OPENS
One platform the whole team kept using, not just at review time
The 360 reviews were the entry point. The rest of Sloneek became part of daily life almost immediately. The dashboard turned into a daily reference: who is out, whose contract is ending, whose birthday it is. The Kudos feature became something the team genuinely enjoyed, with emoji-filled notes going back and forth. The Trust Box gave people a space for honest, anonymous feedback. Absence management replaced a tangle of chat groups and email threads, and the document library finally gave the operations manual a proper home. It also helped that Serbian public and religious holidays could be easily imported and connected with the calendar, which made tracking absences and availability much easier for the whole team. One small but telling detail Milica appreciated: she can approve leave on a colleague’s behalf when they forget to log it. Minor on paper, but it removes friction every week.
What OPENS would tell other HR teams
Milica is recommending Sloneek without hesitation. When a LinkedIn connection asked which HR platform to choose for a growing team, she pointed them straight to it. Her advice for anyone weighing structured performance reviews: they are worth the effort, but only with a platform that makes the process manageable. The biggest surprise was not the reviews themselves. It was how quickly the entire team started using Sloneek in ways she had not expected.
“We looked at more than ten platforms. Sloneek was the one that actually fit how we work and it’s the one I now recommend to others.” — Milica Radošević, former HR Manager, OPENS
