Richard,
I have owned the Sawstop Jobsite saw since it was available March, 2015. I love it. Just some quick background - I needed a saw that I could move around my shop to get it out of the way. I tried to convert completely to using the TS55 for all saw operations, but ripping, especially of narrow pieces, was always a problem.
Here are specific answers to your questions -
Accuracy? - As far as I'm concerned, it's extremely accurate. I did adjust the cursor on the rip fence slightly (although I'm not sure it was made to adjust) but, after that, it's accurate. I generally rip slightly wide and joint, but when I need it right on, it is. I find there is essentially no wobble in the motor's shaft so the cut is exactly where you set it.
Dust collection? - Very good, but not perfect. I understand that Sawstop now has a blade guard with a port on it which wasn't originally available, but I'm satisfied using the 4" port below with my cyclone collector. I don't find the collection with my CT to be as good, but that might improve with a blade guard connection.
Power? - No problems for me. I've ripped 8/4 white oak with it with no slowdown, but I am a more deliberate woodworker anyway and don't do anything real fast. I felt the original Sawstop blade ripped more easily than the replacement Freud Fusion blade I now have (accidentally tripped the brake by hitting an aluminum miter fence I was using), but the Freud blade is a good all-around blade and the full kerf version meets Sawstop's specs for acceptable blades. The supplied Sawstop blade was actually great though.
Durability? - I can't tell about durability, but I see no reason why it won't last me the rest of my life (but that isn't as long as some people might need it to last). It's a very sturdy saw though. The stand is solid.
Thoughts??? -
Table insert - I am on my 3rd zero clearance insert. Sawstop replaced the original and the second one because I could not get it acceptably level with the saw table. It is made of molded plastic and the original and replacement were deformed enough so that there was no way to get it completely level with the table on all sides. However, Sawstop Support sent a 3rd one which is essentially flat. He told me that he would look for one that tested flat before sending it and, while some would say it isn't perfectly level, I have taken a straight edge to this last one and it's as level as my eyes can see. It hasn't caused any problems when ripping. At a recent Woodworking Show, I know I saw a new version of the insert, made of some solid composite material, but Sawstop Service insists there is no other version available.
Table Extension - The part of the table which extends is not exactly level with the main table and there doesn't seem to be anything that can be adjusted, but it has not caused any problems as far as accuracy, so I don't worry about it. There is a little play when it is extended.
Table - The distance in front of the blade is a little bit short, but I'm sure that is typical of jobsite saws in general.
Portability - I love being able to easily fold it up and move it out of the way. It allows me to free up space temporarily for other operations. I never take it out of my shop, but its movability is a great feature for me.
Miter Gauge - The cheapest thing about the saw is the miter gauge, but I now use an Incra miter gauge and that works well.
Riving Knife/Blade Guard - These are great. There is a separate riving knife and a riving knife/blade guard combo. The dust collection isn't great when using just the riving knife though, but that should probably be expected as there is no cover on the blade.
Safety - I have never seriously injured myself on a table saw and I've been woodworking since the mid-70's. However, since I have owned the Sawstop, I just feel less stressed when using the saw (not inattentive before someone hones in on that as a drawback). Since I did trip the brake on an aluminum miter fence, I saw how quickly the saw reacted (even before I knew what happened) and that gives me peace of mind. Even though I've never hurt myself, I know it can happen and I have cut myself with other, less dangerous tools, so running my finger into the blade is always a possibility, no matter how safe I've been over the years. To me, that alone was almost worth it.
Overall, I'd say that it's a great saw. It does what I want it to, crosscutting, ripping, and even cutting up smaller sheets of plywood. It is a great supplement to my TS55/MFT3.
Hope this helps.