My wife bought me the Yamaha DTX 400 kit for my 60th birthday. It is about as low a price as you'll get for a name brand kit @ $500 can.
Absolutely perfect for a "none drummer" wishing to upgrade from pounding on a keyboard. It's very basic but easily upgraded to better components if you so desire.
If you have the bucks go for the top of the line Roland kit ( $4,000+ ) as it is defiantly like playing the real thing.
I have dabbled in drumming and even played a few gigs in a country band a few years back. I own a real kit and have recorded it on and off over the years. I use auto snap to correct my not so perfect timing. But often the sound is not what I wanted so end up performing replacement anyhow. We all know what a pain miking up a real kit is.
So far the digital kit has saved me a lot of time. So easy to play the parts in real time which means less time editing. And even if it's just a matter of inputting the snare part, you get the dynamics and cool stuff not possible with your fingers on a keyboard.
A few things I have learned.
Latency- You are best off to play your parts while monitoring the Brain sounds. If you try triggering a soft synth there will be a few ms delay in reaction that might bother you.
Not all Soft synth samples will respond to playing dynamics and nuances as well as the sounds in the brain do. I have taken to using a lot of the brain sounds in the mix as they are actually very good samples and they change up properly, like the ride as an example. The brain changes in and out of bell tone but most patches in Session drummer don't. You have to use the sfx samples to get some variations but even those are not as good as the brain.
Of course you will record the kit as MIDI. You can print the audio output of the brain later after you do a little ( or lot) of midi editing.
Quantizing- Yes the kick drum defiantly, The hi hats, probably,, but the snare I separate out and will then do this manually. All those subtle flams and para diddles get trashed with quantizing. I even find the song might sound best with the snare a hair ahead of the beat.