Been playing a Crusader on a friend's account since he got in the beta, gotta say the class is pretty fucking fun, it seems fairly awful at sustained damage unlike the other 2 melees, but you can burst shit down by popping a bunch of cooldowns at once, it's pretty cool to play. Also very tanky. Been leveling from lvl 1 on Expert(3rd difficulty) without any twinking, seems to be about the right difficulty, it's mostly easy but some rare affixes can be dangerous(arcane beams, poison shit, mortar if you eat them and fire chains mostly) so it's not too easy.
Mobs die a bit slow if you don't get a good weapon quick, but luckily loot 2.0 is pretty good for drops and you upgrade shit non stop with better and better stuff. Found 3 legendaries so far so not a huge number but still nice, one of which I have no idea what it did(some amulet that spawns the arcane orb effect where there's 4 little orbs circling around you, but those don't explode when mobs come in melee range so not sure if NYI or they do something else).
I'm level 40ish in Act4 of my first playthrough, expect to finish act 5 around lvl 50 or so, which is pretty cool since it means you don't have to replay the game multiple times like currently. That's not doing any bounty either, just leveling the normal way, I wanted to see how it'd work out if I was to level a crusader as my first class on ros(so without lvling a char to 70 first to unlock adventure mode). I expect with a hellfire ring and a good ruby in a helm you would be fairly close to 60 at the end of the first playthrough.
Other than that, for people stuck in queue to create a game, it seems the game allotement is based on difficulty and game type. If you play softcore and master, the queue is insane because everyone who's testing the PTR is mostly doing that(torment not accessible). If you try logging on expert or hard, you'll log in instantly. Master is still retarded easy compared to mp8-10 on live anyway, so there isn't much to see there, if you just want to check skills out just log on expert or whatever. Also if you play hardcore, there's no queue for any difficulty.