Excerpt: The Skil iOX has been on the market since at least 2006. It's been a very popular product, particularly because of its lithium-ion battery, which holds a charge for up to 18 months (depending on the frequency of use), and light weight. This new incarnation, the Skil iXO3 , maintains the 3.6V Li-ion battery and a svelte 11.2 oz weight, plus adds a couple of new features that are sure to appeal to DIYers and home owners.
Pros: Fits the hand perfectly; light and comfortable, Adequate power for most household fastening tasks, Right angle attachment increases versatility
Cons: Doesn't provide much torque, Limited in the size of screws that can be driven (up to about 1 1/4" in pre-drilled holes)