The original game (up through v20.15 or 20.16 or whatever) is imho an S-tier porn game. People would complain about which characters were updated in which order, or gripe that certain characters were never updated, etc. But there were not really a lot of complaints about the game itself. Maybe some of the mini-games are wonky, but that's sort of the extent of it.
99.8% of the moaning is about the way the developer has managed the 'product' of Summertime Saga. Which, if you are new to this thread, you can ignore entirely and just play the game for yourself and enjoy it or not enjoy it on its merits and ignore the noise.