GTA Online is a pretty round and complete player experience. It gives you more or less enough control over the way you play to facilitate most needs that arise, but is simple enough for players to just jump in and play without any bother. The game either drops you into a session seemingly at random, or if you're keen on playing with people you know, you can get invites or join friends who are online.
However, this simplicity and ease of access does come at a price. There isn't a whole lot of game mechanic customization going on for invite-only lobbies. It is pretty understandable for public sessions to be default, stock versions, however when players want to tweak things a bit for their closed session with friends, they're left wanting.
Several multiplayer games allow for the hosts of a given session to alter options to a varying degree of freedom. While some of these games limit these options to player limit, game-mode or banned weapons and abilities, other allow hosts to go nuts with altering gravity stats, damage ratios, drop rates, melee damage and so on.
