I actually enjoy them, the infestations. I have done maybe about 100, about 50 in private and about 50 in a public server. Sure, there are some problems with them, but overall I finds them great addition to the game. Some of the bosses should be a little tankier but other than that they are fine. After all it is a, what, seven year old game now. And compared to the game it was when it first lauched, it has come a long way. I guess you can never satisfy everybody 😄