Hi cachehunter,
The Speed Master looks an awful lot like the Tecomec Mini Jolly but with more plastic. Plastic isn`t inherently bad except that it may be if the vise is plastic as it appears to be. It also appears from looking at the picture that the bracket holding the motor to the mounting base may be plastic although I can`t be sure.
I had a Mini a long time ago and it served it`s purpose, but I have since found that there are much better grinders available if you can justify the expense. The motor on the Mini is too fast and a bit weak IMO. The small wheel size also precludes finding a borazon wheel for it. The chain vise does not tilt for the 10° topplate grind on chisel chain but that might not be significant to you. Centering the wheel relative to the vise was always a challenge also and the grinder lacked a light. Even with these shortcomings(in my mind anyway) illustrated, the Mini can be servicable.
You might be interested in trying to find a Tecomec FL136 or Oregon 511A. They are better grinders and you may get a new one in the $200 range if you watch eBay. You might spend quite a bit less if you go used.
Russ