I wouldn't be worried and would be more likely to buy one now if I didn't grab one during BF sales, since they dropped some incoming news. They're dropping a new atomizer revision in a few months and confirmed that all glass will still work with any new revisions to the base. Both pretty huge things imo.
If you take care of your atomizers properly, there's no real issues. Sometimes it's inconsistent, but I think it's particularly finnicky with how much you load. If you overload, it struggles to get up to temp more. I've found cold loading to give me the best results and it's worked solid, daily for almost 3 months now.
Just drop your atomizer, fully assembled in iso to clean it. Let it air dry, or use a blowdryer or heat gun if in a hurry. Doing this, and ONLY dry swabbing after a dab, I have been able to stick with one atomizer for around a month now (I know that's not long, but prior, I was having issues thinking that I maybe had a faulty base due to how to inconsistent my unit was)
I'm still waiting to find an insert material other than ceramic that works as well, but it's still definitely nice to have. Now that I know any glass I buy for it won't be obsolete in a year or 2, I'm also considering buying a custom attachment, but the stock one definitely isn't terrible... not amazing but not awful either.