@IT Troll
I find the tracking absolutely fine on the Dream Air Slam, if using Pimax Play or Evo (SBoys3 driver is a bit jittery with it at the moment, which is worth being aware of but I've no doubt it will improve.)
I also have a Crystal Light though and always found the tracking on that great tbh, so I was hoping it would be the same/ as good on the Dream AIr SLAM - and it is.
I think your room and immediate environment probably have an effect on SLAM tracking and for whatever reason mine is good, even though I have controlled low light almost all the time. I don't play silly games like Beat Saber though

so maybe if you play really fast stuff it might not be up to your needs?
One gripe is it does often lose the play space a bit and you have to do the quick room setup. This is
the one annoying thing, but I'm sure that can be sorted out with software.
It's worth noting too though - I had lighthouse tracking for the short time I had the MeganeX (obviously) and I actually had way more issues with that! It would often 'lose' a controller or head tracking and just spaz out vs the Pimax's. And I'm blessed (or cursed?) with youthful hearing perception apparently - I found the high pitched whine (many can't hear it) from lighthouses almost unbearable so I was really keen to not have any and go SLAM again.
Regarding the increased brightness on the Dream Air SE. Given it's the same "Seeya" OLED panels as in the BSB2 it will use the exact same method as the 'overdrive' function on the BSB2 software. Yes it increases brightness a good amount, but the persistence and ergo motion blur is just fucki9ng awful and I would consider it unusable. It's truly bad. It also made the fan run at 100% on the BSB2, which was awful. The Dream Air (full fat and SE) design and chassis has way better airflow than the BSB2 so fan noise might be ok with that. I'd also add, after really stringent testing I came to the conclusion that the Pimax Crystal Light is a much better headset than the BSB2. Even though I'm an OLED snob, I think these Seeya panels in the BSB2/ SE are just rubbish. The Crystal Light QLEDS have a much better colour reproduction and with the higher res panels and excellent aspheric lenses it is noticeably sharper too. Local dimming with QLED is also 'ok' in darker scenes sometimes, but compared to the proper full fat Dream Air Sony OLED panels.......my lord...........it's a night and day difference all round for everything! You get what you pay for is an old but true adage.
I also have to say -
fan noise and fan issues are not talked about enough when it comes to VR headsets. The BSB2e I had had a terrible fan buzzing noise that would kick in often and the only way to fix it was to remove the face gasket and slam it back in - a 'known' issue if you look it up. And as mentioned above I tried 3 (******* 3 !!!) MeganeX headsets that all had this weird fan fault noise issue. My Dream Air fans are perfectly fine and the way it handles thermals and noise is waaaaaay underrated given its size and what it pumps out visually, and my Crystal Light is even better (totally silent), so go figure.