I truly love my RATank. I have rebuilt it several times now (vape it a lot). Compared to my other (carto) tanks it's not all that much larger and I generally vape it on one of my Provaris. It's been worth every penny I've paid and then some.
I like it cause it's easy to clean, easy to rebuild and hits like a freight train. I like it because I can build my coil/wick to suit what I want in ohms and vapor production is monumental.
I vape this at home, as Jeepster08 mentioned you can knock the top coil cover off easily, but then you need to be able to get in there easily to rebuild it. I find the work to be impeccable on this device. The guy that makes these is very knowledgeable about what is safe to use with juice as far as the metals go and does a beautiful job on the lathe.
I do not use juices in it, or in any of my polycarbonate tanks that will interact with them. Anything acidy goes into a Phiniac.
JMHO