Summary: I debated getting this screwdriver for a very long time due to its cost after seeing its predecessor in a store and liking the feel of it as it is one of those tools that makes you say "Ooh, well made tool!" when first picked up. Now after having it for a couple years, I wouldn't be without it as I didn't realize how much time I was wasting with a manual screwdriver.
Summary: I have owned this for about a year now and while it hurt to purchase I am now buying another one for an electrician that works for me. It is that good! The batteries charge in about 10 minutes (or less). The clutch is accurate and it is strong enough to drive a 1 1/4 screw flush into a 2X4. My only complaint it that since the Lithium Ion battery is so light and the gear mechanism so heavy duty the balance is not great.
Summary: This Panasonic actually retails for over $300. If you are using a manual screwdriver on a regular basis and can afford to upgrade to this model, do it. Highly recommended. Everything about this is exceptional. Surely beats those Black&Decker $25 models in almost every aspect. Highly recommended. The only minor inconvenience is the fact that the case that is provided is molded, so you cannot use it to carry additional tools. Trust Panasonic, it is used #1 in Japan.
Summary: I bought the hitachi lithium screwdriver and it broke within the first week (I tend to work my tools hard). I later bought this one and it's been going strong for a few months now with no problems at all. I'm an electrician and I use this practically every day because it takes the work out of - this sort of work... ...recommended.
Summary: The Panasonic EY7410LA2S 3.6-volt lithium-ion drill/driver seems to do a good job. The only issue I've had with it is that it does not come with many bits and no bits are offered on Panasonic's or Amazon's website when looking for compatible bits. I did find that the Milwaukee 48-32-1500 Quik-Lok 38-Piece Hex Shank Drilling and Driving Bit Set works perfectly with this tool. (I tried several of my older bits from a variety of electric drivers and drills.
Summary: I use it mainly for computer installation work - It has just the right mix of size (big, but not too big) and power. The clutch adjustments work perfectly. The battery is small but I have never run out of power yet.
Summary: It is expensive but it is the best. Great torque, high speed when needed, and battery life that lasts and lasts. If that is not enough the driver comes with two batteries and with its rapid charge rate combined with long life of the batteries you should never find yourself waiting for a battery to charge.
Summary: The panasonic power tools are superior to other DIY brands. I have used these professionally for many years and they are extremely durable and reliable. The torque limiting clutch is very accurate and repeatable. This is not a high torque drill, but for driving fasteners to an accurate torque this is a great tool.