I use the RE320 teaching online - alongside a fethead, and a scarlett 212.
It's a great sounding dynamic - good directionality, no proximity effect really, rugged.
The tonal balance feels like when other microphones (421, 57, beyerdynamic mkii, which I was using before) were compressed. Just that touch more warmth, and brightness in the top end. It's not a wildly open sound - I wouldn't describe it as open or natural, like say the AKG 417PP lapell mic which I also use from time to time, it sounds like a broadcast ready microphone - nice radio friendly tone.
There is a tone switch to swap between kick and voice tones - haven't had a chance to test on kick - but I do prefer the voice setting for my voice - the kick setting seems to take out some stuff between 250-and 320 (ish - haven't gotten forensic with it) - which probably cuts out boxiness on kick, but on my voice just pulled out quite a bit of warmth.
Comes with a protective case - though I'm not sure why you'd need it - as the mic itself feels very very robust - I think you'd have to work hard to damage it - that being said the case is strong and sturdy, and looks like it could take a beating itself - it's not a weak leatherette bag, like you get with some microphones.
I had tried an SM7b, and for my voice preferred the tone of this. Though there is a little more tone shaping on the sm7b - so If I was going at it blind - I possibly would have made that decision. I think having gotten and used this mic, the ease of use and the sound, I wouldn't swap, if anything happened - I'd buy another straight away.
The microphone is a little on the larger side - but thats the price to pay for the variable D (proximity reducing design), but not too unwieldy, fits in a tight enough space on my desk on a fairly basic desk mic stand - without issue.
Although not really advertised - works well with plosives - I haven't really had any pop issues, even though I'm 3 inches from the mic roughly, and working without a pop shield.
For some situations depending on your set up, perhaps you have the need for a high pass filter - so perhaps would prefer the re27 0r re20, I'd spring instead for the triton fethead that also has the filter - or a little bit of post processing - unless its something that you have to have at source.
It's starting to tip into the expensive side for a dynamic - but worth it - sounds every penny and more.