So, this week, my current main, Hanako, finally hit level 40. A new badge, a new costume and several new contacts/zones all suddenly became available. Oh, and suddenly I'm meeting new enemy groups too.
So far, this has been a mixed blessing. I mean, PI, Portal Corp, the RCS (and the lovely shortcut to Crey's Folly through it) are all great. Carnies are interesting, fun to fight, and have some really nifty costume elements that I wish players could get. Crey and Nemesis are unchanged so far, but that's ok, as I enjoy fighting them anyway.
Malta are pretty dull looks wise, and for the most part aren't too troublesome. Sappers land a hit so rarely that it's not relevant, and Gunslingers are quite challenging in a fun way. The Engineers though, and the blasted turrets they drop. >.> The turrets aren't *actually* very dangerous to me, but damn, they have a stupid amount of lethal defense, and taking them out is a chore. I must say, I really think that the Devs need to do some re-balancing there, given that the turrets can be spawned in a few seconds, (and I've never managed to interrupt an Engineer once they start laying them), they last until defeated and they give no XP.
And then there are KoA.

I've only had one, thankfully short, mission against this lot, and it'll be the last one I take with this toon. (Unless I respec into flight for some reason.) Gah! Not hugely dangerous in and of themselves, but the sheer number of caltrops patches they put out is just plain ludicrous. At one point I engaged six KoA, and in the time it took me to defeat the first one (5-10s), there were 8 patches of caltrops slowing/killing me.

And because caltrops are auto-hit, like CM said, they totally negate my entire secondary. Very much not fun at all.
Still, I've been having fun, sudden unpleasant surprises to the contrary. 40+ really feels almost like a whole new game. And I haven't even looked into the Shadow Shard yet. I'm hoping it's more like the Carnies than the Knives of Artemis. *crosses fingers*
All of the above is, of course, merely my opinion. It may not coincide with yours. That's life.
<i>Give importance to the small dreams you painted towards the sky</i>