I did my ME IR CPL (+SE CPL) with Sky Venture Inc. in Fayetteville, Arkansas, in 10 days in November last year.
I had a FAA PPL IR when I arrived. I had the same instructor from start to end. They kept their word regarding price, a/c availability, and quality of aircraft (Piper Arrow and Seneca with Garmin 430W and old dials). The school said before start that it would be hard and it was.
I can highly recommend Sky Venture Inc. for FAA-training or ME-building. Fair prices, well maintained equipment, and a service-oriented management and staff.
Cheers