As the title suggests, these were my first upgrade from ibuds.  They broke a while back so I'm going from memory but I did have them for a while.  First of all, they're super comfortable. The only closed back I've tried on where putting it on actually cooled down my ears instead of the opposite.  There is plenty of room for the ears and I literally fell asleep with these on a couple times.  They work well right out of an iPod, although they do come with a 1/4" adapter if you want to use them with anything more serious.  Isolation is fine, I was...

I've borrowed these as my standard headphones are out of commission for the moment and I couldn't stand my computer speakers any more.  They're a decent value, but at $11 they better be.  It's quite difficult to get a full seal on my head, the shape doesn't really fit my head.  Once you get your seal, however, they isolate fairly well and are comfortable.  A little warming around the ear, but nothing truly objectionable. Haven't worn them for more than 2 hours at a time, but even after that time sweating was minimal. I also had no problems...