Got my hands on one of these today.
Initial impressions are good. The plunge saw is solidly built. It sits on the track with no slop and travels smoothly.
The rails are solid enough for the task and come with non slip strips on the bottom. These do not appear to be as hard wearing as the non slip strip on the Festool track, but could be replaced. The tracks go together well with the joining strips and the hold down clamps provide adequate pressure.
The edges of the track are very sharp all round and I'm surprised they have not been eased a bit more. Easily done yourself and probably fitting for the price.
The only thing that really lets this down has to be the breakout strip. It is too soft and chipping still occurs, albeit much reduced than not using one. I haven't tested this yet, but I reckon the Festool strip will fit on it. If this is the case, then it is a must.
For the money I think it is a great package and I'm very tempted to get one myself once I've check out the Festool strip with it.
I'd go and see one and have a go if you can.