I have two, a Petpy Love and a Pet Gear. I like the Petpy Love the best, it is not so heavy and cumbersome. I got the stroller initially so Gracie could go outside for walks with Holly and I after Gracie had her bilateral knee surgery. It worked great. And when she could start walking again, it was only a bit at a time so we would walk one lap, then put her in the stroller for the rest of the walk. I plan to use it when I take them to crowded places like farmer's markets etc. where I don't want to risk them getting stepped on. I will also probably take it with us to the beach, one to bring them into restrooms with me
and two, if they get tired while walking on the beach they can ride back. I have this habit of losing myself at the beach and walking way too far, then wondering how I will get back!
It is one of those items that you probably won't use every day, or even every week, but it is an essential for certain occasions. I find it especially helpful when hauling two Yorkies around at the same time.