Developers who have been working with the Nokia X family have great things to say about it.

The entire process - from downloading SDKs and porting, to integrating Nokia HERE in place of Google Maps - has been seamless. Satyajeet Singh, VP Products, Zomato
The API analyzer made it very simple to identify the areas of change, making app portability even simpler. Vinodkumar Putta, Team Lead, BookMyShow
Nokia X services API documentation is fabulous and helped me port my app in a few hours. Pedro Monteiro Kayatt, Lead Developer, Naked Monkey
Porting our apps to Nokia X was a very pleasant experience due to in-app billing and push notification APIs being compatible with Google’s architecture. Marko Štamcar, Senior Android Developer, Outfit7
From a development perspective it’s not going to cost you anything and it will just take you a few hours to do. Samuel Forrest, VP of Business Development, PICSART