The FFT is just as rudimentary as in my 9-year-old DS1054Z
But it's
much more detailed, has much faster update rate, much lower noise floor, it's much easier to move the trace around and rescale it (touch screen!), and (most importantly) it has a table showing frequencies and amplitudes of the peaks.
Acquisition rates in Recording mode were painfully slow; less than one shot every 5 ms.
That's going to depend totally on your configuration and memory size. There are slow cases and fast cases, just like on
every other oscilloscope.
Trigger coupling in AC or low-frequency rejection mode is useless, it has a massive jitter. Looks like nobody at Rigol ever tried this.
Can't say I've ever used that in 10 years of oscilloscope usage (I had to look up what it did when it was reported) and, given how long it took for it to be reported, I suspect hardly anybody else uses it either, including the people at Rigol.
I've always triggered from what's visible on screen because it's visual and you can see what you're doing.
IOW it's almost a non-bug in reality.
That said, it does indeed have a beautiful screen
Yep.
and honestly the bugs haven't (yet) hindered my use. But I'm a hobbyist, and not a sophisticated user.
Exactly.
If you're a "sophisticated user" then get a Siglent SDS2000. This 'scope isn't aimed at you.
(and neither is the SDS800 when it finally arrives)