Summary: UPDATE (2013-09-28): OK. I'm now two months out. The On-Demand bit wasn't quite working for me as sometimes it'd just take too long for the unit to get a GPS signal when I requested it. I could live with it getting it within 5min, and often it did, but sometimes it'd take 10-15+ minutes which isn't useful when I'm trying to find my dog. My solution, and it's working rather well: 30-sec updates.
Summary: This is an amazing product, especially for the price. I've had it for one year now, and I give it 5-stars for it's ability to track. I deduct one star for two quirks that can be worked around, and don't affect its tracking ability at all. My husband takes solo 3-hour to 5-hour long bike rides (training for races)and he brings this with him so I can track him.
Summary: First off, let's get one thing straight. This is not the same GPS that hiking people use with strong GPS signal. If you want one of those, spend another $300 and get one. Just like my car gps, if you don't have window access, won't get signal. I set the battery on the "on demand" option and checked the location only 2-3 times/day. Within 3 days the battery was at 20%, at which point it stopped picking up the gps signal.
Summary: Initially tried the Tagg pet tracker after my dog disappeared for 11 days. I wish the Tagg would have worked for me, but Verizon data coverage just wasn't strong enough and the battery drained in less than a day. But their customer service is the best I have ever worked with. Found the GTU-10 on sale at another site so I gave it a try without very high expectations after reading the reviews. I have it set to check in every 15 minutes and not sleep in a geofence.
good device, works well for cycling - some interesting features, although garmin website misleading
21 March 2012
Summary: so I've used and own a bunch of garmin devices and generally am a fan (60csx for hiking / geocaching which is a great unit, edge 500 for cycling which is good and a nuvi which we weren't crazy about).. in this case, there's some things I do like about it very much, and for what I need, it works great -- but I wanted to clarify what I was told by Garmin about the tracking, because the web site is very misleading in my opinion on the differences between the two plans...
terrific battery life, polished iPhone and DROID apps
En P. Junction, Amazon
9 March 2011
Summary: -----UPDATE--------- After using this thing for a little while I have some useful feedback. It is more sensitive than most to being in doors. All mobile phones and 5 year gps units can get some fix inside my house, but the GTU10 wont attempt a fix with less than 5 satts. If you use the heaviest battery setting you have to recharge once a day. Its that simple.
Summary: We bought our first Garmin tracker after spending 3 hours searching for our terrier after she ran off during a walk! The device is not small, but even for a terrier it is quite an acceptable size. Despite living in the country where the mobile phone signal can be a bit hit and miss we have had really good success with this unit. It isn't perfect but we are able to get a fix in the vast majority of cases despite where we live.