As pleasant as any major purchase could be! And they made it as painless as possible.
I think George M. Hill and Sons is wonderful. They've done some repairs and maintenance over the years for me, and recently they installed a new HVAC system--a Trane. I dealt with the office, which was all very pleasant and helpful, and then four men came out to do the installation. They were wonderful. They came early in the morning and spent the whole day, not leaving until they were sure that everything was working properly.
It wasn't a happy experience replacing something that large, but they even vacuumed when they had finished. I couldn't even tell they had done any work because they cleaned up so well after themselves. The job they did was very thorough, and the installers seemed to care about what their customers think. Everything is working beautifully.