I used them last harvest for the first time because I had an abundant harvest and jars were not an option for all of it. I really like them, they definitely cure without burping as they claim, mine has been in them for about 6 months and it smells better everytime I get into them. I still flip the buds occasionally just so bottom ones don't get flattened over time. I didn't heat seal any of mine from fall because I like to play with and manicure my buds here and there when I'm bored, but I'll probably seal a few and stash them away soon. I keep all the grove bags in a cooler for extra protection because my house is sooo dry in winter, but they claim to not be affected by the environment they are in as long as it's not super extreme. I think the QP size is best if you have a manageable amount, the HP ones are big and a little cumbersome to store. I prefer the "soft touch" kind because it feels like a stronger material that I'll be able to reuse a few times. Just be careful with the zipper seals, they seal very well and there are a few rows of interlocking grooves and flaps, if you pull the wrong way hard, you can rip the whole zipper off... I did it to one lol... stoner moment.