Beautifully made and when set up and positioned correctly give you bang on cuts, every time. Very happy.
Couple of pointers for people looking to get some or suggestions for improvements. I got the 500mm version, I think that was a mistake, should have got the 330mm ones. The 500mm bars don't fit in my drawers (should have foreseen that), but not just that I have found myself having an annoying amount of bar sticking out quite a lot where the shorter ones would be better. I got the 500mm ones because I thought it would mean less joining sections together which based on my experience with track saw tracks I dislike doing, but that's no concern with these, they go together perfectly square and almost seamlessly, no wiggling around lining them up, the machining is so fine you can barely see the join and its a 2min job although a bit fiddly.
Suggestions for improvement, I would make the knurled knobs a bit chunkier, either larger diameter or a bit deeper so there is more to get a hold of. I find with my Makita track that unless they are screwed on really tight there is a little bit of play between the guide adapter and the track. The little bit of play doesn't affect the accuracy or cut position at all so maybe I am fussing over nothing. Perhaps a system like the rail square where it snaps on properly tight would be better?
If you are swithering over narrow cut guides then get them, I was swithering as I don't really use or want to use the plunge saw for narrow rips, I generally do them on the table saw but the narrow cut guides make it really easy to calibrate the guides and they are worth it for that alone.
A bonus use that I didn't foresee is I have been using them, along with a router guide rail adapter, to rout housing slots for shelves, too big for router table or router fence and these ensure each cut is perfectly spaced out and square. You can either keep the calibration and butt the router cutter up against the rubber strip on the guide rail or re-calibrate them by putting the router outboard of the strip slightly (so you don't risk cutting it) then butting the narrow cut guides up against the cutter.