I have just purchased 'The Bull' as a replacement for my dewalt D55153. I like alot of things about the rolair. I have to say though it has had issues starting up in the morning even when heating it in a box with a light. It could be that the Oil provided when I purchased it was not a good oil for our use, but I was surprised at the trouble we were having getting it going. I do think it could do with more cfm output as it doesnt take much to over power it by simply running two guns off of it. Though in rolairs defence it is half the price of the dewalt as well. I did more buy it as a backup compressor so it doesnt matter too much but 4cfm is not enough for framing your really looking for about 5-7 for a standard framing crew of 3 guys. My dewalt had 4.5cfm output and it could do it but was easy to outwork as well. The Bull does really seem a much more well made unit though. I will just have to look into why it has trouble starting up. I would just like them to look into cold weather work and kicking up the proformance a bit more, if they can make that happen it would be the best thing out there hands down.