I initially talked myself into a large Ridgid 12 gallon unit with the most hp and cfm, but then realized that most of the time I need something small and portable. I typically just use it on cars, and small jobs in the garage and house. So I bought the small 5 gallon unit with the car cleaning kit and like it so far. It was supposed to come with the fine dust (blue colored) filter, but there was a sticker on the box stating "due to covid 19 the blue filter was out of stock, so the swapped for the white filter and dust bag". Looking forward to simply tossing the full bag and replacing, vs scraping all the **** out of the inside of the vac.
In the future when/if I get more into wood working I plan on getting the larger unit and a dust deputy, but it will more then likely be stationary so I might just look at getting a dust collector instead of shop vac.