just checking in with some positive news and give hope to others out there wondering if they should purchase a Hopper. i'm now 8 months in with mine and it's been trouble free. never had any signs of poor performance or any hiccups along the way. i have noticed a minimal decline in battery performance with the GHB1's but that is to be expected. i still haven't turned on my 2nd Hopper that i bought as a backup to see if it even works. i've been so happy with this vape that VAS doesn't even get to me anymore.