I have done business several times and built 2 computers buying parts through them. I find them not particularly friendly for the first time customers and their finance system does take a bit of time to work through. ONthe last order I put together a home use computer and had my answers within justr few moments after the sales/service people finished with the customers ahead of me. I would rate this experience about 7 out of 10.
Just a comment about purchasing parts from any retailer. If you do not inspect the merchandise in the presence of someone at the store before you pay for it, I am not very impressed with your business sense. I always check parts out before I leave the store to insure the parts are new and I always insist on uncirculated parts. Sometimes it costs me more, but I do get what I need that way. So If you want new parts verify they are new parts before you purchase them.