Unpredictable timing and session totals
Before you set a stake, accept that you cannot know how often the Free Spins round will come. Nobody can know that in advance, and the result of one session stays random whatever the RTP. Two players with the same bet can finish with very different balances after the same number of spins.
Deciding which version to play starts with the game rules. The RTP version that Fairgo runs for Sweet Bonanza 2500 is shown only there, so check it before you choose a stake. Each version appears with its return in money, so you can compare them side by side.
Before you chase the largest prize, treat the maximum win as a ceiling. Sweet Bonanza 2500 reaches that ceiling very rarely, and no session can be planned around it. The figure describes what the game allows, not what any single spin will pay.