Of course, the game is very dated now and Funcom is a terrible company but it's still a solid game in terms of having build variety and having ways to deal with group content. It also avoids the annoying thing where developers artificically kitten Tank/Healer DPS for reasons, so that even Enforcers/Soldiers/Medics can deal decent damage if built right (With Soldiers being highest DPS in the game if you manage to build them for it, though it's crazy expensive to do so) Every class could deal decent damage in AO if the build was right. But it is still one of the most complex MMOs I have played over the years: easy entry, very steep learning curve regarding character development and really nice group/raid content (mastering the Alien Commander raid on DNW server was a nice experience). And yes when played with a minimum requirement of players some classes were mandatory. Going in there without them resulted in a fail - that means everyone of the ca. 40 players had a specific role to play. Trinity has its pros (e.g. fixed roles for everybody - no effort into micromanaging skills, etc.) and cons (e.g. longer downtime on group content, since one role is missing). If someone likes it (s)he may play like it in GW2, but should not expect others to follow her/his lead. Even with the meta builds GW2 has a lot more to offer regarding character building.Imo the Trinity can only be replaced by systems like AO and GW2 (both have their downsides and are far from perfect - if that is even possible due to a very complex balancing issues), that allow players to test and optimize their builds, if they want to. Otherwise playing the game is possible but may be restricted in some aspects due to content designed to be challenging. But that should be ok in a game that mostly tries to avoid Trinity in a classical sense from the beginning.