To OP - the issue isn't really whether it's a quality brand snorkel as most will be fine to someone. Like most gear you just have to figure out what features
you want and don't want. It's going to depend if you will continue to wear this on your mask, (many people don't), put it in a pocket, or leave it in your dive bag. If you don't know yet and just need something for class, I wouldn't start with a $65 snorkel. Start with a $10 snorkel, you may find you never care and won't be too bothered when the ocean eats it. If you're lucky, you'll find one down there.
As far as the flex, that may help keep it out of the way if you're wearing it on your mask while diving, but can pull on your mouth and be tiring if you actually use it to snorkel a lot. The flex it may help you be able to stick it a pocket, but it's not as good at that as an actual rollup snorkel plus it may eventually break if you do that all the time.
If you actually go snorkeling a lot, you may find you're happier getting a second snorkel specifically for that. I have a rollup I stash in a pocket for diving and a Tusa Hyperdry for snorkeling. (Which is not really "dry", just has a simple splash guard and purge, but works very well for me.)