Absolutely buy it, you will not regret it. It comes with an ultra thin kerf blade. More run time, quieter, less material waste, less dust, incredibly clean cuts. Makita just released a full line of blades for this saw, including the stock ultra thin kerf blade. You can purchase it for $44.99. Makita's tracks are cheap as well. I purchased (3) 55" rails for $55 a piece during a promotion and plan on getting the 118" rail as well. They've all been as straight as my Festool rails. I used to have several Festool rails, including the 2700mm and sold them all, including my TS55, after I purchased the 18vx2. I was cutting 1.5" countertop yesterday and the power difference between it and the TS55 is noticeably better. Also, i love not being tethered to a cord. If I don't want a mess in the garage I'll take the workpiece and the saw outside, make my cuts and bring them in. No way would I have done that in the past if I had to deal with extension cords.
What isn't mentioned often is how much quieter and smoother than Makita is compared to the Festool. The Festool has a 'groan' to it like a bearing is out but it's just the speed controller. Makita has the same constant speed/increased torque feature but you can't hear it. The electric brake is also incredible.
Watch this video to get an idea of the dust collection with a bag and the kind of cut it can take.
The only thing about this saw is that it excells with teh ultra thin kerf blade. If you want to change blades you can but you'll comprise your splinterguard on your rail. I gave this some thought and realized I could just shim the blade on the inboard side. You can buy shims to accomplish this for cheap. Just calculate how much offset you need based on the plate and kerf size.
If you can't tell, I'm a total convert. If you end up getting this saw take a look at the brushless router. The dust collection with the fixed base is better than any Festool router on the market and its got plenty of power for a 1/4" collet sized machine. I have the plunge and fixed base and ended up getting rid of my OF1010 after getting it.