I don't generally go running outside or even on a treadmill -- closest I get is elliptical.  But I do cycle, indoor row, strength train, do aerobics classes, and just generally wear them around the gym.  I really wanted a laceless athletic shoe and there are hardly any out there; I thought there might be good reason for that.  However, this shoe fits great, looks great (in my opinion), and is pretty lightweight.  So I hope others start making them, too.

I could do without the white tread stripe since that's likely to show dirt quickly; I think shoemakers purposefully do that to encourage people to buy new shoes since they'll look old without regular cleaning before they're really spent.  But for successfully making a laceless shoe, I'll forgive them for it!

Also, in the way of sizing, I have somewhat wide feed and Puma's shoes usually are far too narrow for me (which is frustrating because they often have great styling).  I did go up half a size on this shoe and I think it's exactly the size I needed -- it hugs my foot from the sides a little, but not noticeable enough to be distracting (I quickly forget it) and I figure that's probably necessary to keep the shoe on without the aid of tightened laces.  I've not had them long, so they'll likely break in some too -- though hopefully not so much they feel loose on my feet!  I'll update my review if anything like that happens.  Until then, I definitely recommend this shoe.