We spent a lot of time looking at the different kits on Wayfair, but in the end decided on the Callaway Grand package.  The delivery was delayed a week or so due to the white version being back ordered, but it ended up being delivered a couple days earlier than the estimated date.  It was delivered in 3 boxes; 2 of them are fairly heavy so best to have a couple people around when it's delivered.  UPS took great care getting them here as there were no signs of the boxes being damaged, nor was any of the components inside once we got it unpacked.  

The instructions are very clear, and the setup took me about an hour to complete.  I would suggest not tightening things totally as you go - there are a couple pieces that will require you to have some additional clearances to get them installed.  The finish is very good for a prefabricated kit, and the fireplace unit puts out enough heat for the room, and the fan is not very noisy.  

Overall, a great buy and experience!