I bought this set since it's a much better deal than the dryer alone.
My big question (that the description didn't answer) was yes, it is a full sized hair dryer, not a travel sized one, despite the 'blow on the go' name. The brush/concentrators are also full sized, but the products are travel/sample size.
This dryer is a huge upgrade for me; it dries my hair in about 7 minutes, almost cutting my blow dry time in half. (Which of course just leaves me more time to do a blow out or curl it.)
Dryer has three heat settings and two speed settings, plus a cool blast.
The case is rather useless, it's soft fabric, so it's not great for travel unless you keep the plastic insert, which is a waste of space. The brush is nice and lightweight.
Overall, a splurge, but I'm really happy with it.