Epson Ecotank happy as a pig in shit user here. Bought it 5 years ago, still going strong. No bullshit cartridges just fill the tanks with ink and off it goes. Yes you don’t a little more for the printer but it pays off the first refill.
How are they for rare usage? My last ink spewer dried up after each print because I had weeks between them. Switched to monochrome laser years ago but it's getting old and it decides to print 20 pages of garbage on every fourth print or so.
I think you're probably fine. The inks themselves have a 2 year expiration date, but AFAIK that's just a typical "Quality assured until" date. I've not heard any issues with long spans between prints, so long as it's plugged in so it can do a bit of maintenance.