When I ordered my 3100, I made sure it was 50amp with two air conditioners. Someone mentioned how far back the front A/C is and kinda close to the rear A/C. I didnt realize this would be the case. I would have ordered the 3100 with the front A/C more to the front. However, I am OK with the setup. We spent 2 months in Central Texas living in the PC while looking for a house. Temps reached 100 plus for MANY consecutive days. We were comfortable.
Also, regarding ordering parts online. This past Saturday, I ordered a hubcap online. Monday morning, I had a confirmation from Carol and the request to call her with my credit card. I was pleased with the process.
Finally, regarding custom build. I am also a bit disappointed with PC USA going to the dealer network. I "hate" dealing with dealerships and have found them to be less than knowledgeable about product and even more deficient in getting things fixed after delivery. Factory direct and customizing the build was a MAJOR factor in me ordering a PC...along with the recommendation of some good friends. I had the factory replace the dinette with a nice cabinet and counter top, with 5 inches between the cabinet and the sofa for storing TV trays.
Service at Elkhart is still good. I had an appt in August and everything went well. I will probably make an annual trip to Elkhart, even though I am back in Texas and it is quite the trek.
Cheers

Barry T