Dunno how high you can jump, only tried it a couple of times.
About as high as all the other jump abilities (Thin Man, Chrysalid, G-Mod), aka "as high as you need to". To compensate, it has a one-turn cooldown after the turn that you use it, so you can't go jumping everywhere
. I've mostly used it to get on top of the larger UFOs (chased down a Cyberdisk with three MECs that way once), and I've even glitched my way through
the roof (to get a Heavy Floater that did the same thing
Doesn't matter though, because kinetic punch is glorious, and if they're too far away to be punched you can always railgun fools.
I could try to count the number of screenshots I've taken of the punch in action, but I'm afraid it might take all day.
Seriously, I've punched a lot of dudes so far. An EXALT through a shipping container here (both sides, legs flailing), a Chrysalid into a truck there (hurting Beetle Bailey in the process. Yes, I put Beetle Bailey in here, mostly because of the old-fashioned military bowl helmet), destroyed an extremely expensive telescope to get a Muton...
I've even punched a Sectoid Commander out through
the wall of the Abductor UFO command room. It was quite cartoony.
I even had to do it twice because I had to reload (game froze up on me)
Seriously, MECs are awesome, and if it wasn't for the rather high cost in Meld I'd happily field an all-MEC team.
I'm already up to four (two maxed, one tier two, one standard on the way to tier two), which I used to get an achievement ("Field a squad with 4 augmented soldiers, each with a different base ability and win the mission") on my way to another achievement ("Field a squad consisting entirely of augmented soldiers and SHIVs (min. 4) and win the mission"). Of course, I'm playing on Normal (just to get the feel of the new stuff, I swear), so that may have something to do with it.
Next go-around, I'm switching on the soldier randomization Second Wave options (including the new Training Roulette) and doing a G-Mod run.
I also want to add that, despite the awesomeness of the new stuff, that something that probably slipped by some people makes EW even more awesome: Officer Training School tweaks. Three major ones in fact:
-Don't Die On Me has been removed, replaced by a G-Mod (second heart) that functions the same in practice. This one I don't mind, since I tend to be "all or nothing" when it comes to being taken out (even if a soldier survives, I probably won't use them after).
-Lead By Example was added, which confers your squad leader's Will to any of lower rank near him. So now you have a good reason to bring a Colonel on a mission, as long as you keep him/her close to your squad.
-Iron Will is now a Sergeant level perk, instead of Major! This one is major for me, since I had always waited to get it before bringing my avatar into the game. Not only do I get to bring him in earlier, I also am more likely to use the squad that I used to get
the perk in the first place (before their Will usually ended up being so low that I ignored them afterwards).
Finally, giving personally named medals (that give bonuses!) to people who may or may not deserve them is a nice touch. I'll admit that I sunk all of them on my guy (as you could see in the pic above), even before I had fielded him.