The new Shermans come with ultem instead of the pmma. I just got an ultem section yesterday, it looks a little better than the clear, and won't crack. Until I got the ultem, my three favorite 'high end' tanks; hurricane, aqua2, and sherman, all had pmma tanks....it hasn't really been an issue, although I was pretty paranoid about pmma at first. IMO the Sherman outperforms the Modfather in every way that is important to me; flavor, smooth airflow, build quality. But some people like acuras, some like lexuses, some like mercedes...it's a calculation that we all make, what tank is best for me? I have about 7 different tanks that I use on a regular basis, they all have their plusses and minuses, but I like them all enough to use them. One thing that I've noticed is that all of my favorite tanks are bottom airflow...for me, that delivers the best flavor and the vape experience that I enjoy. I do think the sherman's build quality is as good as any tank that I've used, even tanks that cost twice as much. Everything is relative, though...for some people, a one hundred dollar atty is a major investment that 'has' to pay off, for others, spending a hundred dollars on an atty that they may not like is not a big deal. Just like some people will pay big money for fancy wheels, while others are happy with stock rims...value is pretty subjective. Almost everyone that I've talked to who has the sherman really likes it...but they probably (like me), want to like it, and that bias flavors our experience...it works both ways, too...when I got an aromamizer I was pretty sure I'd hate it, and I did. To answer your question, though, to me a plastic tank is not a deal breaker, it is just one of several variables to consider. It's way less an important consideration than build deck design, or airflow smoothness. The pmma tank, on the sherman is a moot point, anyway, since they're shipping with ultem now. IMO ultem is better than glass, but that's just an opinion.
