I've been a customer of Trail Appliances for over three years now and they are the first place I go to when I need a major appliance.
I've found the sales person generally very helpful. Some can be a bit "forced sale", especially towards higher profit margin items (i.e. appliances specially made for Trail). But once I found the right sales person (originally Coy, who subsequently left the company, and now Catherine), I always make my purchase on the spot.
I've found their prices, especially during boxing day, to be unmatched. And even when other retailers have lower prices, I'd get better prices by simply asking for it. The service has always been impressive.
On the delivery side, I've never had any issue with them scratching the hard wood floor or damaging my walls. My washer and dryer pair ended up barely fitting into the storage closet and I don't know how the delivery person managed to push it in... but I was so impressed with them that when I told my mom about it, she ended up buying the same thing from Trail.
The only problem I have is the dishwasher that I purchased this month (Nov 2012) was charged about $160 in delivery and installation and I think they used to do this in house and costed only around $70. Something to take into account when making your purchase as it adds to your final cost.
Overall, I highly recommend the company as the go to place for major appliances.