i have Tomo V8-4 coming in, looks like a nice plasticky one with on/off switch. i can't recommend it yet, still need to test it.
I got mine today, on a Saturday :twothumbs
FYI it's the one with current/voltage display when connected to smartphone ("5.13V 0.79A"). My USB meter shows at the same time '4.97V 0.74A xxxxmAh'.
It is smaller than i had expected. The plastic feels cheap, well it is plastic lol. The pixelated LCD is pretty cool and my overall first impression is 'i like the product despite the el cheapo material'.
What i also like about it: it has 2 patent numbers on the back, not 'Patent pending'. And apparently the product has been evolved from years back.
I won't test it for the sake of testing, there are many technical and customer reviews on the www, blogs, forums, amazon, and youtube, but i'll use it a few times on the go in conjunction with my USB meter and USB charger(s), just to play with it. No serious or systematic testing. I am not that bored in life.
Protected 18650's. Unprotected 18650's are an easy, almost loose fit. I got a 69.10mm long Protected 18650 which fits soo, i wouldn't try to insert anything longer than that. All Protected Eagletac 18650's (blue label, red label, green label) for example fit, they are shorter than 69.1mm.