There's some gems of games in this platform. Brought my friends in to play and we had lots of fun. It's a good medium for spending time with friends. I don't spend too much time socializing on here cause its either kids, kids with money, and predators.
Graphics... it really ranges from game to game. The standard roblox game would have okay graphics and then theres some that don't look like they belong on roblox (but instead as their own game).
The community some youtubers form on here is what gives it a +1 from me. Even if I don't play roblox that much, seeing what these creators do with this platform give me enjoyment.