@Arkandel
Fantasy Grounds has most of the book information on the platform available, the PDFs of the books can be loaded into the library and accessible to the players. (The platform is free to use for players, though the GM needs a subscription, whomever is running it - we have a subscription because my husband GMs a lot on there + does some coding work for them.)
Consistency is about the same, in my experience. Honestly the attention paid is probably higher because we're all "plugged in" to the same thing so it's hard not to be paying attention to it. Attendance might actually be a bit higher, and the amount of time it takes "to play" doesn't actually take the time investment of attending a RL game (which would include travel time + time spent talking about all the other stuff in life).
The biggest drawback to me is if you get more than 3 other people on a Discord call, then you start getting people talking over one another and it can be frustrating. I play a game with 1 gentleman who cannot seem to allow "dead air" to happen, as he perceives it, which makes it hell trying to get a word in edgewise with him sometimes. It also means you don't have the visual cues you get from face to face, so someone might be acting like a dick (but not intending to be) or the "IC" vs "OOC" might get confusing.