After two months of daily use I am still impressed with my unit. I got a m107 from Randy at puffitup with the intention of leaving it my car as a daily driver, but it goes pretty much everywhere with me. Bought test tubes, screens, mflb caps and two straight stems from planetvape almost immediately. Extra stems are nice because I'm lazy and don't want to clean them. When my first two were so dirty that the abv was coming out sticky, I tried the hot chocolate recipe on vaporpedia, which was incredible. If you haven't tried it, definitely give it a shot sometime you are felling froggy. It IS way more difficult than iso, but totally worth the time. In the future I will probably be sticking to one stem per cup, two was a bit much. Maybe if you clean yours more frequently two would be appropriate.
I modified one of my stems ala PVHES and was fairly impressed with the increased airflow, but didn't see fit to mod the others. Just put in an order for a PVHES to see if theirs is better.
I am a fan of the pessimistic battery indictor, but I'm the type of guy who sets his clocks fast. Even if I know it is actually 5 minutes earlier it reminds me to hurry up, and being early or charging before 0% certainly doesn't hurt anything.
Another thing that I am extremely pleased with it the durability of the unit. I'm not gentle on anything I own and the solo has stood up to dozens of falls. Lapped it getting out of my truck to gravel once, another time off my porch to a wooden stair and then cement. I would expect this thing to have tons of scuffs and scratches on it, but what ever type of coating my black model has on it is
tough. If only apple used the same coating on the back of their new phone...