I’ve not seen too many of the E[motion]’s available for sale second hand, but keep your eyes peeled. The longer tank section does impact the flavour slightly from what I have heard, however it’s nothing too drastic. The 2ml version excels because of how short the chimney section is, making the flavour more concentrated.
They didn’t release an SS version off the bat because of the cost, one of the main reasons that the cost came down compared to the E[motion] is because it doesn’t use an SS tank section, however Stattqualm have said that they will now release an SS version of the SQuape E[c] shortly because there has been a fair bit of demand for it. I’ve had the black version for a month now, I use it constantly, and I’ve only picked up a small chip on the drip tip because I dropped it straight onto the drip tip
rest of the finish is as perfect as when I first got it. You can customise the look of it too by switching the AFC, tank section and what not, plus parts are fully interchangeable with the E[motion].
Can’t speak for the threading on the E[c] yet, not had it long enough, but spare PMMA sections are easy to buy from Creme de Vape if things do go tits up. The PMMA should be built to last, it’s heat treated to strengthen it as well, and with how well SQuapes are made I don’t think there’s a chance of the threads dying off early