I don’t consider them tedious, but I generally dont end up doing all the side content, I just played the game and occasionally did the side quests between main story quests, so I wouldn’t be able to give you a good assessment on that.

For whatever reason eBay prices on the game have spiked dramatically, but you used to be able to get the game disk for Xbox 360 for like, $10. Its backwards compatible.

You could also just download and emulate the PS3 copy of NieR Gestalt for free if you are concerned about not liking it and buy the game later if you do.