Terrible usability and marginal worth
Continues to be a complete piece of garbage. It hasn't even worked in months. Unless you have your Gowalla account "public"... it won't even bother to do an item search. If you have your Gowalla account set to "private" it states "You might want to check that you've got a valid GoWalla (sic) username." PATHETIC. All other Howalla search apps do not require your account to be "public" for them to look items up near you. This is garbage.
The interface is terrible (not intuitive at all when wanting to alter location), the usability is cumbersome (making one click through every found Item at a Spot), and the design is ugly (though one could debate this point).
It didn't crash on me... but there are much better Gowalla apps for much cheaper.