This person is trying to find an e-cig that works, not a box mod. Best advice is to get a larger mAh battery, such as an eGo, which won't break after a few days or a week or so.
The blu, Greensmoke, No 7, etc, are all cheap-quality e-cigs and won't last long, in general. Batteries will need to be recharged every 1/2 hour to 2 hours, and the performance of the batteries will decrease with each recharge.
New atomizers need to be soaked in isopropyl alcohol for a few minutes or an hour or so and then rinsed out and dried before using (to remove the primer liquid that's on the atomizers when they're new). Then the foul taste will be gone.
The best price for an eGo 650mAh is Liberty Flights. Use the coupon code of ECF for a 20% discount and a total price with shipping of $42.98.
Electronic Cigarette - Starter Kits - Joye eGo
You can also get these kits at litecigusa.net, cignot.com, goodprophets.com, and several other suppliers. Many people end up buying an eGo battery after they waste money on the cheap-quality kits. Some people will buy box mods in the future, but for now, I think you would be very happy with a Joye eGo.