FWIW, I have both a Trion barrel and Bosch 1590EVSK top handle. I bought the Bosch AFTER the Festool. Here's why...
#1) I prefer a throttle on the trigger rather than a two-hand speed change using the dial. Just my personal preference...
#2) The dust collection on the Trion is fine *IF* you keep the clear shield in place. The problem is that while it's in place, you cannot see the blade on the cut line. Once you take it off, dust collection is pretty much non-existent. There are workarounds to this which have been discussed here on the board.
The Bosch will at least blow away the dust so you can see the line more clearly. So far, I've been using the Bosch for woodworking and the Trion for metal cutting.
In my limited use of both tools, I find little difference between them as far as performance goes. Other members who use these tools more often can probably comment more fully on this.
- Pete