Kenmore Elite 2.0 cu. ft. Microhood Combination with Even Glide Review

I love the idea of this appliance and have used it with good luck.  However, we've had to place two service calls for it during the 1 year we've owned it.  First it stopped working on "combination cook".  Some flap broke internally and it quite functioning.  Very frustrating. 

 Secondly, the plastic around the door warped from heat on the stove.  Also maddening as it's designed to be over a stove. 

Sears service was really good about coming out to fix it, but now our warranty is about to expire and I'm worried.