For a map it seems to be good, but I bought it for the animal cams. So far have yet to see anything other than the pandas, and the app tends to kick me out every 4 to 7 min regardless of what Im doing. Getting really tired of reading some cool animal facts to my kids and having to suddenly reopen and find where I was continually. Will rate higher when they fix those two problems.
Update here it is 2016 and have yet to be able to see any animals beyond pandas and an elephant backside. The cameras are off line or nothing is there .
Crybaker737 about Smithsonian's National Zoo