Uniformity is everything my man.
A blade grinder will break your beans in random sizes. You will have big chunks with almost zero extraction (basically wasted) up to super fine powder that will get grossly over extracted (bitterness to the max), and everything in between.
A good burr grinder helps keeping everything “in the middle”, so you can get a much more controlled extraction.
I don’t know about this 50$ Costco grinder but if it’s electric, it will be shit. You won’t find any decent grinder, even straight from China like a DF64 for less than 350.
Your best bet for constrained budgets is a good mid-range manual grinder from 1zpresso. It will be night and day compared to your blade grinder.
Oh yeah we’ve got them. They’re called “young managers”.
I went on a business trip a couple weeks ago with 3 of them. Those mfers were working on the planes and in the airports, went straight to the remote office when we landed, worked until 7pm, and started their next day at 7:30am. The grind is real.
I’m a senior software developer. If I can’t fit everything I need to do in a regular work day, I either suck at my job or the job is managed by idiots.