I don't know if this thread is just about domestic or international but I recently tried booking an award ticket from Amsterdam to Lisbon via a partner airline using JP Miles.

The ticket would've been booked on Lufthansa (via Frankfurt) and there was availability. The trip would cost 10,000 miles. Taxes came to about Rs. 9,500.

This wasn't a good deal for me since I could fly the same route with easyjet or another budget airline for about the price of the taxes i.e. Rs. 9,500.

Decided against it but just putting this here for your information