Coffee beans are spoiled by oxygen, light, heat, and moisture, so storing them in an opaque vacuum canister is a great idea ... in theory. I've tried several different vacuum storage canisters for coffee over the years, and they all suck (pun intended).
They mostly don't hold a vacuum, and it's just all too common to start your coffee routine by finding that the vacuum canister has equalized overnight, exposing your beans to at least oxygen and humidity. Some of that can be explained by fresh beans giving off CO2, so the vessel may be filling carbon dioxide (harmless) and not oxygen, but the vast majority of outgassing is done 3 days post-roasting ... and I regularly find broken seals weeks after roasting. Sometimes bits of bean build up on the gaskets, breaking the seal, but even regular cleaning didn't solve it.
So for years, I've used the Airscape canister, which was one of the best solutions inexpensive solutions out there, and it works by using a valved collapsing lid (it's the equivalent of squeezing all the air out of a plastic bag), which reduces the volume of air that comes into contact with the beans. I kept a week's worth of beans in the Airscape and stored the rest of my coffee in canning jars that I vacuum-sealed with a jar sealer. Canning lids and rings tended to hold a vacuum reasonably (but not perfectly) reliably.
Fortunately, Fellow recently released a coffee storage solution that doesn't suck, their electric Atmos canister (it's battery-operated and only needs charging every couple of months). It's super easy to use. You push a button, and it vacuums itself closed. Push it again, and the vacuum releases so you can get the lid off. And best of all, it monitors the pressure in the canister and automatically adjusts should the pressure change inside.
I've been using mine for several months, and I'm delighted with it. It keeps my current bag of coffee fresher than the Airscape, but it's not cheap ($75-$85 depending on size) but it does a really good job. Whenever I put a fresh bag of coffee inside, I brush down the rubber gaskets, and along the inside/top of the canister to prevent bean bits from interfering with the seals. The top section contains electronic equipment so it's strictly wipe-down only. No running water, and definitely no dishwasher. But I'm finding that it doesn't need much cleaning anyway.
The bigger size is good if you tend to buy your coffee in 1-pound bags (454g), and the smaller will hold 12-ounce bags (340g).