Mine just arrived today.
First an FYI, the settings controls are different from the FW6. I had both out to compare, and as is typical for me, I grabbed the FW6 manual absent mindedly when I went to look up how to change the settings and proceeded to be confused for the next 20 minutes. I didn't even notice the different pictures.
I really like the slim form factor. I think it might replace my Crafty as my on-the-go dry herb vape. The Crafty heat up time doesn't even come close. Despite the conduction elements requiring a slightly longer heat up time, I'd personally still consider this to be on-demand. I pre-heat my Splinters for longer than it takes to get a good hit from the FW7 thus far.
The WPA adds about 1.5cm to the width, and makes it a little wider than the FW6. Milking up my bubbler is very easy to do, possibly as a result of the conduction elements? I can't really compare it to my 6 as I've never really found a way to use it with water conveniently. For my attempt today, I went with the stock #3 setting with water which I think was 220°C, and found it to be a little too hot. I was getting some really toasty almost burnt tastes. Gonna drop that setting down to around 205°C or 210°C and try again.
A minor issue I have is the button placement. I wish it were on the opposite side, like a mirror image to where it is now. It would make it easier to press the button while using a water piece. The most comfortable position I've found for this is to hold it in my right hand, but that makes me have to press the button with either my index or middle finger while it's facing away from me. If the button were on the opposite side, I'd be able to press the button with my thumb like I was using a video game controller:
Holding the Orbiter in my left hand and the Firewood as pictured still feels the more comfortable than the other way around, and having to press the button on the other side is a little awkward, but workable.
Another issue I think was mentioned by someone before is that the button is a little on the small and difficult to press side. A little bigger and more clicky would be preferable. This issue is exacerbated somewhat by my issue with right-handedness and button placement above.
And a really minor thing is the logo. I generally prefer devices without branding, but I don't dislike it and I think it looks tasteful.
Overall, I think I already prefer this over my 6. I think I need some more experimenting to get a better sense of how much the conduction adds to the experience, but so far it seems like a winner to me.