GPS trackers are awesome. When you find one with a decent app please tell me about it.
I've got a boomerang and while I rather like it, the software isn't really up to the quality level that it needs to be. The website interface is better than the app (IOS and Android) but still isn't that much to brag about.
I've three principal complaints, in ascending order of lameness:
(1) You can manage multiple bikes, but you can't name or rename the bikes.
(2) You can find your bike, but there isn't a good direct method to navigate (e.g. get directions) to where your bike is. You can paste the lat/long from the web site into google maps and navigate that way. But if you end up navigating to an apartment building it would be a challenge to figure out which apartment your bike was in.
(3) Logging in to the website or the app is hilariously insecure. Well, it isn't really hilarious. If you knew someone who had a boomerang it would be straightforward to log in to the website and stalk them. Although your stalking would be limited because you can't easily navigate to them because of (2).