rem700.... I didn't start with a disposable, exactly, but it was a wretched little creature called a firelight that fried open batteries about 3 a month. Man.. spent a FORTUNE keeping in batts. Stuck with that little thing for almost a year, though, before I found ecf... thank goodness for ecf. lol Then I got an ego... was happy with that for close to a year, and now use a vv box and minibox. But both those boxes crapped out on me in one day, so back with ego. That's why I'm so anxious to get my new tox. I can't afford provari, but the two things that I think would bother me are the single button design, and the weight of it. They're really weighty creatures! I'm really hoping the TOX will be sort of an answer to the LT reliability probs, since it manufactured by Green Sound. Ive never seen the tox in a super detailed review, its too new for that. But I have seen the Ultima (also a Green Sound product). Now I'm not fond of the Ultima, since its essentially designed to be a pricey throw away, but SteelJan's video on it was awesome. She took it apart, and showed how Green Sound used oled screen (which just about noone does) and used screws to keep everything in place, instead of the glue thats more common. So crossing fingers that the Tox is manufactured with the same high standards! But I do like the fact that you can change tube size, also. And I'm buying a 3 yr warranty to go with mine from Squaretrade for $11... so just on the offchance it dies early, I'll be protected. But do keep you eye on the tox, since hopefully it'll end up even cheaper than lava (it JUST came out, and you can already get the kit with 2 tubes, 2 batts (one for each size), 2 vision giant tank thingies (i think they're a cross between a clearo and a carto tank), lanyard for $69. So in a couple mos, they might be much cheaper, plus coming out in colors, and by then the reliability will be established. I hate being one of the guinea pigs on the new ones, but I'm desperate, so I'm relying on the Green Sound quality and the warranty. Plus, some of the features are just nicer. Crossing fingers!