The conversation on this frequently ends up being a battle about whether or not you need a local dealer to provide quality service (especially warranty based). If you do a search on rvwholesalers, wholesale dealers, or other related topics you will find a ton on that.
To your particular question, we have purchased both of our trailers from them. They are exactly what they advertise. The price they quote is the price you get. You will get some high pressure for extended warranties, and you have to make sure you do your due diligence at delivery (they will tend to try to rush through it), but you will get the trailer you want for the price you expect.
We have not dealt with any warranty claims yet (I tend to fix most of the little things myself, and haven't experienced any large issues), so I can't comment on that issue. However, we tried to buy local and the best we could do was more than 20% higher than rvwholesalers. To date, we've been very happy with our decision.