yeah, i wish the free one was a full featured time trial or something instead so people could really test it. but $10 is really cheap to even try something and not keep it.
their own support forums are great, the developer responds within a day usually on there:
http://www.alpinequest.net/forum/
FYI, in the "available maps" screen, scroll down to the bottom and click the "additional maps" button (or something like that)... then look for the map sources with stars. specifically near the end of the list are the Caltop maps - which include great ones such as Forest Service Topo, USGS Topo, land ownership overlays, etc. also you might add the HERE/Yahoo maps which have nice road maps and satellite/hybrid maps (because you can't save the Google map sources for offline use - per Google's License terms,
i used to try and teach some clinics for our club (offroadpassport.com) on general tablet/phone GPS use covering multiple apps. now i just cover AlpineQuest to keep it simple. most folks i've turned on to it really like it after playing with it a few days. the exception being really non-techy people that still prefer older dedicated GPS units like Garmin/Magellan/etc.
i also like
Copilot USA as an on-road/nav app. it does full offline routing and such after you download the ~2GB complete US map. it covers a ton of larger forest roads actually too, at least out here in the Southwest. however, i don't use this app as much anymore since i have a Verizon tablet and seem to get service often enough that Google Maps usually works for my on-road navigation needs.