I'm kind of with Holly R. I tried to like H&M during a trip to Raleigh a couple of years ago. I did manage to buy some Snoopy socks there, but at 37, their clothing doesn't appeal to me. However, the guys clothing seems to span multiple age groups.
The store is a nice size, seeing as that they took over the old Borders bookstore. The prices are very reasonable.
I didn't interact with any employees that day...I was never greeted or given any sentiment as I left the store. In all honesty, I probably wouldn't have been able to decipher an employee vs. a customer.