I have the sliding version, and I have found it to be very good for the price. The multi purpose blade gives a reasonable finish and cuts quickly, and I think they do a wood specific blade too. It is lower rpm, higher torque than normal saws which when coupled with their blade geometry allows it to cut metal and wood.
You can use arbor adaptors to fit standard blades, but then it will cut slower than normal because of its lower rpm. You can not use their multi purpose blades in other saws though as they wouldn't be safe at the higher rpm of normal saws.
The build quality seems generally robust and the slide and pivot mechanisms are smooth, and mine doesn't have any noticeable play in these components.
Once you calibrate the mitre and bevel angle scales properly using a square, then I have found it to be quite accurate, and if you use the repeat stops (or make your own if you want bigger lengths) then I have had no real problem making repeatable cuts.
It isn't as accurate as a table saw of course, but it is certainly acceptable for this type of tool, especially for the price.
The blades can be sharpened, although I have to say I haven't needed to do mine yet as they are still very sharp (a year of hobby and household use).
Also replacement blades are often available cheaper if you go to the Evolution website and then click the button at the top right for their Ebay outlet
It does have some faults, for example the laser line it projects is too wide and inaccurate to be of any use, and the positive stop for the mitre angle has a bit of play, but if you calibrate the scale correctly, then you don't need to rely on that anyway, so these drawbacks don't really affect me much.
I just wish I had bought the version with the bigger blade (mine is 210mm with slide).
The cutting through nails really is handy for choping up bits of old scrapwood without worrying too.
