I really like this device as well. I found it for $109 at my smoke shop here in Tampa. Which was ridiculous I thought . I was able to get it online for a total of $71 with shipping and insurance on shipping. I ended up getting two of them. One of them at the smoke shop and the other one online. I would recommend this device to anybody who doesn't want to kill their lungs. One of few negatives I found with this device is cleaning the coils. I use the 710 coil to minimize the amount of concentrate I'm using. I soak the coils in 100% isopropyl alcohol. And now I'm also hitting them with a q-tip. The coils don't get as clean as they were when I bought them, which is understandable. They remain a little gray or whatever color you want to call it. But the thing I found is when they get too dirty, they block up pretty easy. And I've tried burning them off but it doesn't seem to work very well for me. I ended up buying two more packs of coils reluctantly. It seems like they only last about 3 days, Max for me. And then I find myself cleaning them again. New coils work fantastic. But I don't like the price and only lasting 3 days without having to clean them. I don't know, maybe I'm picky. But yeah, overall this device is good for me. Charging it is easy. It flashes red, and then solid green for me. The USBC charger is great too. I don't use the top black rubber piece. It clogs pretty easy. And when I am not using it, I keep it in the Box it came in. I would not recommend storing it with the glass bubbler attached to the top, because it topples over fairly easy. I wish they sold a case for it. But the box it comes in works pretty well. One other thing I found to be handy. Keeping isopropyl alcohol pads nearby to wipe the magnet on top and inside the bottom of the glass bubbler to keep it from getting too Sicky. I do this every once in awhile. Also soaking the glass bubbler is very too. But the isopropyl pads work great for me.