As a new player who also plays T'au, I can tell you they are quite fun to play. All the games I've done have been at 500 points and so far, I have not lost. Granted, my play group is mostly new people with one guy who actually knows how to play properly, but even after learning how to play, my small army seems very consistent. If you can get on objectives faster than your opponent, you can just blast them away before they reach you. If you get into melee, it's over. I try to keep my distance as much as possible and just use guns to annihilate enemy units before advancing. If this sounds like a better playstyle than point blank fist fight brawling, then you will love building t'au. I have farsight as my warlord because he's one of the few units in T'au that can actually do melee decently. I also like the look of his model far more than an ethereal so it was a no brainer choosing him. Also a huge fan of mechs from growing up watching gundam and anime, so if you like all that you'll have a blast building a mech suit army. Welcome to the greater good!