There are better options out there
Not a bad app; however not great. First, the maps are raster based which means long download times, slow loading and huge file sizes. These days, vector based maps are where its at. The 3D feature sounds neat but in practise, its kind of a gimmick and unless youre in a really mountainous area, the effect is pretty subtle.
The app has track recording as well as routing features; however the latter is pretty useless for a trip of any distance due to the map file sizes ; I guess you could try relying on live map downloads over cellular but at that point why not just use the superior Google maps?
Lastly, support is lacking. Its a paid app and the developers have dropped support for all iOS versions except iOS 7 and have even cited a "new interface". Well based on the screenshots, it looks exacly like the last version. Cmon devs, I know Apple is pushing hard for iOS 7 domination but many devs are at least supporting iOS 6; you can to.
Caddoc about
Maps 3D PRO - Hike & Bike, v3.4