you dont want to open up custom ui changes at start. you would never know what crap is out there. BUT i do want a custom ui mostly because i feel like i look at my hot bar more then the rest of the game.
as for me when it come to the game i have yet to hit a snag but i only hit the 3rd planet. IMO the bloat is only there if you got in your head that you need all the skills, there all useful but you dont need all for every fight. also i dont think i had trouble in the 10-20 is i got lucky in black talon, but as imortal if you dont order mark targets its easy to lose a mob with our lack of aoe.
also there is no need for one tank class to be the best tank for all aspects of the game. but other then that i love them and the animation is nice.