This place is always so busy; you really have to go in with a lot of patience and time to spare.
I used to be really into H&M but recently I think the store has lost its lustre to me. The clothes aren't that interesting anymore and they don't carry as nice of stuff as I feel like they used to- however a lot of my H&M experience is limited to European ones, which are always better anyway, so maybe in general it isn't too bad. Almost all of their jewelry is gold too, which is annoying when gold doesn't look good on you.
I like their selection of bags and scarves though, as well as simple t-shirts and all that. Their men's stuff is pretty nice too.