Snap is nice, open all the time, cheap and they have locations everywhere. THe only issue is they are Waaaaaaaaaaaaay to small. I went to Elite/Endurance and even Ultimate Fitness before those 2 names
and I really liked it. Anyway, there is an Anytime Fitness on 44th near Burlingame but that may be too far. There is a Fitness 19 in Jenison, that isnt too bad either. You could try the YMCA, a little pricey but has everything you need. If all you do is treadmill and eliptical then go with Snap.