I've had this saw for about a month. Generally satisfied with its performance. Not satisfied with the top blade holder that required the Allen wrench so I removed the Allen bolt and found I could use a bolt with a knob that I had laying around the shop. Now undoing the top holder to move the blade to a new hole is a snap.
The only problem is that the upper arm is mounted inside a plastic housing that holds the blade guard and blower assembly. Within a few days there were stress fractures in the plastic. This doesn't affect the performance of the saw although it does cause the housing to vibrate so I removed the blade guard which I prefer not to use anyway.