every poker room can be bad if you don't follow certain rules of bankroll management, and try to take all the money in each hand with any shit in the game.
every poker room can be good if you build your game correctly. to achieve this, you need to get good skills, for example, with free freerolls.
everyone wants to get rich quickly and safely, but not everyone can.
good luck at the tables!
There is nothing to suggest, that any major poker site has a rigged rng, so its not an issue. As for game quality it depends on, which games you play and what time of day. For obvious reasons games tend to be softest, when recreational players are not working. Which again depend on time zones and so on. As a general rule, the more appealing a certain game form is for grinders, the more of them you will find. This is why, for instance Zoom games tend to be reg infested.
I am convinced that in most cases your results depend only on you and not on the site where you play. However, I do not recommend you to play on a site like Intertops, where there is a big problem with withdrawals.
ACR to me delivers the worst beats. Or what I've found is your opponent nearly always has it if you don't. I've seen some really sick hands on there.
This, this, and this. I have gotten to where I hate flopping the nuts here. I don't know what the others are talking about when they say it depends on you, when you consistently get your chips in with the best of it and consistently end up with the worst of it, not sure how that's on you. I am talking have to have specific runner runner combos to win type of hands and not just in Holdem or Omaha. WPN is just bad with the RNG, get your chip stack up early is my suggestion because the "variance" seems to lean in the direction of the chip stacks more often than not.