people will disagree about 'best', but both Troy (420 vape zone) and Bud ('vape critic', no longer active) had/have the mighty as one of their top vapes forever, even years after they were introduced. these are guys who've used literally 100's of vapes. you can decide for yourself if they're honest; Troy strikes me as the real deal, not some corporate shill.
I've had a mighty for almost 8 years, use it 1-2x/week. it's never needed a repair. I still get 2-3 sessions per charge so it could last a few more years - all without a replaceable battery. the vapor is cool (at lower temps), not 'uncomfortable'. there's no 'tickle' issue IME.
they're expensive (but you can find deals on vapospy)(probably not during xmas season though) but work great, have zero learning curve, and (at least in my experience) last. I'd much rather pay more up front for a tool that works well and lasts than get something cheaper, only to be back searching for something better soon afterwards. I've owned a few other vapes but either got rid of them or almost never use them. the mighty checks all my boxes, even excels at vaping wax and hash.
fwiw. my .02
p.s. re 'parts to maintain and replace': you don't need to buy anything more than what it comes with except screens and o-rings - and they're cheap.