I love my VTR. Got it because I liked the recessed 510 connection, looked very portable/compact, and it takes 18650 batteries. I use Panasonic IMR NCR18650PF batteries that are rated at 2900 Mah and 10 amp continous output. I am a heavy vaper & one battery gets me through more than a day. Also liked the flexibility of having 15 watt output compared to 11 watts on the MVP 2.0. Don't think the price difference is too much either so getting more for the money, IMO. It is solidly built and feels high quality. It is pretty heavy but I don't mind at all. I would say it was definitely designed for guys. The 19 mm ring at the top does limit atomizer selection somewhat but the iClear 30S, Protanks, Kayfun Lite 2.1, iClear X.1(new) and some others will fit. There is a full list of what fits without adapter somewhere on the forum. You have to use the included adapter for devices that have a diameter over 19 mm. However, I'm going to see if I can fit my Kayfun Lite Plus clone on without the adapter when I receive the nano tank kit (shortens by 10 mm). I've also seen atleast one person mill off the ring which allows for just about any device to fit. Probably more than most people are willing to do. I bought a leather belt holster for an old flip style motorola phone and it fits the VTR great. It even has a recessed flap for the drip tip to poke through. Worked out very well because I certainly wasn't going to carry it in my pocket. If you do decide to get the VTR, I would suggest you get the updated version that doesn't have the spinning thumb wheel at the 510 connection. Look for an ebay seller that specifically states they are selling the updated version. The older version, I hear, has issues with reading resistance and making a good connection. Plus, the connector is just plain wobbly. I have the new version and the connector is rock solid with no issues. Probably more info than you needed but hope it helped.