relies on your phone working 2.4 Ghz your internet connection your power their datacenter their website software to avoid carrying a key? anyone in the area could easily ddos off your wireless more or less permanently by spamming disconnect. doesn't seem like a very good risk/reward ratio to me. whats the problem with a more traditional (read local) keyless approach? door too thick?
Gas to run
You making sure everything is well maintained
Expensive vs biking
Auto mechanics needed if your car breaks down
Anyone in your area could easily steal your car or explode it rendering it useless.Doesn't seem like a very good risk/reward ratio to me.
Kidding aside, you must not have read very carefully, since it has NFC and Bluetooth as backups. The DDOS scenario would require a targeted attack, and wouldn't render it useless anyways as per the above. The device works for renters who can't change their lock, but still want some convenience.
Yes, it has some drawbacks. But I think it is an incredibly well thought out device that I'm jumping on.