So, after completing Normal last night I decided to start Ironman Classic today. I've just got the carapace armor and floaters have appeared. Must say, I'm really enjoying it, I was going to take a break before coming back but I've just spent 3 hours playing it.
Lost 2 guys so far, Ironman really makes the recruits available from missions a worthwhile choice. On my last play through I'd just restart which meant I ended up with the same 6 I started with. I can actually see me taking a SHIV now too. 3 satellites up across different continents.
You're a better player than me, then

I tend to find that no matter how slowly and carefully I advance, I'm always triggering two sets of aliens at a time, and thus fighting 6 guys at once.
I think my stats at the end (defeat) of most games are 6/1 kills/losses. In some games that might be acceptable, but in XCom that's pretty poor, apparently.