I have one of these and I really enjoy it.

No it’s not FSD. There is no navigation at all, you’re correct that it’s “just lane assist”. But the lane assist is next level.

I take a few 1,000 mile plus road trips every year and the comma pays for itself every time. Using the stock lane assist, I’m constantly correcting it. The stock assist tries to take an exit, doesn’t handle curves well at all, and any construction or unusual road conditions it won’t work at all.

With the Comma, on the highway it’s basically FSD. On my last 1000 mile trip I never had to disengage, only to pass and make turns.

The biggest advantage is Comma allows you to be completely hands off the wheel. Where lane assist forces you to hold the wheel at all times.