I've had my warranty replacement body for a week or so now and I've gotten to use it a few times and just thought I'd share my thoughts.
1. I no longer use it as my daily driver. That honor has fallen on my recent da buddha purchase.
2. It seems to me like this new body takes quite a bit longer than the old one to heat up. I generally vape on 3-3.5 (But I don't with this one, explained below) and it takes 10 seconds to heat up fully at that temp, where as the old one was at the desired heat in maybe half that time. The heat up time is still great, it's just not what it's supposed to be.
3. This new body seems to have quite a bit more draw resistance.
4. I don't think the heater is working properly. I have it turned all the way up to 5, I'm packing it exactly the same way I always did (that resulted in amazing vapor and clouds at lower temps) and I get...next to nothing. I have to try significantly harder than with my first grasshopper to get any real clouds. I'm sure if I try using it with a water pipe I'll finally get the clouds I want but I'm not going to do that since I'm pretty sure that's what broke it in the first place.
Conclusion:
While it's a great vaporizer in terms of stealth, as it is right now it can't be someone's daily vaporizer if they're actually looking for great vapor quality and flavor. As others have said, the vapor gets quite hot and uncomfortable. I don't know if my brand new warranty replacement body is malfunctioning or if this is just the new standard for the Grasshoppers, but I'll be putting mine away and only bringing it out if the situation calls for a stealthy, on demand vape. If I'm at home, I'll be using my da buddha or my OG Pax through a water pipe. Maybe I'll spring for a firefly 2 after my busy season, but the whole thing about having to use a smartphone app to change the heat settings is quite a bit of a turn off for me. I was so happy with this thing when I first got it but I can't honestly say I'm anything but disappointed with it now.