If you can afford it as a fun hobby then I’d get the M2 in order to get various colors. If your printer is high enough quality it’s much cheaper to go that route and you can print as many colors as you want. The refill labels for the Niimbot aren’t cheap but if you want a dedicated label printer it’s not a bad idea to get one while they’re on sale. Download the app, select the printer you want to purchase and look in the mall to see which labels are available and how much they cost. Make sure you get thermal transfer if it’s going in the freezer, they are more durable.
This is a Niimbot image I took a screenshot of and inserted into my Dymo and it works fine.
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