I have had an Explore Air 2, but recently purchased an Explore Air 4. The 2 was great, no issues. The 4, however, will not connect to Bluetooth on my laptop, or rather it connects but within 2-3 seconds it disconnects. If I use the cord to connect the machine works fine, and is much faster than the 2.
Super fast. Still new to the craft but this machine was easy and fast to setup. I have a Joy Plus, also easy to setup and use but the speed of the 4, is comparing family van to sports car.
I cannot choose the depth of the cut. I miss the dial I had in my old machine. The machine stalls on me and reads "fatal error" often. I've ruined a few nice pieces of card stock.