I use it for my squad sight Sniper. He often just takes to the air where he starts and shoots from there for a few turns. I haven't thought of trying it for others. It doesn't grant the high ground bonus but it does give the flying unit (20 defense) bonus when in use and makes it possible to get to places I'm not sure a grapple would get you. It's Heavy armor too, though I'm not sure if it grants the fire/poison immunities of the Titan. I keep forgetting to use SHIVs. I used an Alloy one for the first time today until it was destroyed and it's GREAT. It can move a long way (might be similar to a Sprint spec Support I think) and since it doesn't have exp to loose, and you can just build another, it's a great scout. Once you have suppression it can even suppress at least one of what it spots whilst the squad gets in position. With 75+10 aim it's better than a raw Squaddie in terms of being able to hit something too and essentially sports a Heavy weapon. Plus it can be used to create cover for your more important human soldiers. I'm actually annoyed I forgot to take one on the mission I just saved at. I just finished a (story) mission with two Sectopods encountered at once and only lost 1 Squaddie! Partly thanks to luck but mainly an Assault Colonel with an Alloy Cannon that took out one of the two almost single handed. I'm now working on getting some Psi capable troops so with some patience, and luck, I may just finish my first Classic Ironman game tomorrow.