1. What is the quality like and what are the most common problems with either divice?
2. How long is the battery life of the mflb?
3. Is the mflb hard to use?
4. Do I need a really good grinder to properly use the mflb or will my cheap 4 piece aluminum one work?
5. How long does a bowl last on either divice?
6. Is the pax worth $250?
+k will be given for legitimate answers, and feel free to sugest other portable vapes.