I had a 12 year old Craftsman NiCad 18V drill that had a worn out grip and was really, really heavy. Still works, but I wanted a lighter weight replacement for it (initially I was in the market for an impact driver, not a drill - but given the fact that the Matrix allows for both, with only one battery, in a smaller more light weight package I was sold). The body/motor, battery: Part of the reason I ended up going with this drill was that I already had other garden tools that have the 20V MAX battery system, and I liked that I could interchange batteries. The drill body is lightweight and compact; the grip is comfortable (mind you as a woman I have bigger hands); the trigger is just sensitive enough that you feel like you have a lot of control without being 'lurchy'. A huge upgrade for me is actually having the LED light - wow. What a difference having a light makes. This made the little bit of extra money to go with this newer model totally worth it for me. The battery is relatively easy to remove and charges quickly. The tiny battery charger is good in that it doesn't take up much space, but bad in that, well, it doesn't take up much space. I can see if it wasn't stored properly or table mounted somehow that it would be relatively easy to lose. The interchangeable heads are relatively easy to snap on and off. I can see though if you had arthritis that it would take a bit of elbow grease to remove them - but perhaps with use this will loosen up. I like the fact that a standard Ph2 and Straight screw driver bit comes with the unit and attaches for easy access via a magnet to the top of the body - but - I can see myself bumping the top and knocking it off. Haven't done it yet, but I can see it happening. I almost wish it 'clicked' in somehow. To me, the 20V Li system seems like a huge power upgrade, and for sure the battery lasts longer and is MUCH lighter than what I am used to. The drill has a lot of power even on lower torque settings. Drilling into masonry on smaller jobs hasn't been a problem (at all). The unit is lightweight but seems sturdy enough; I haven't had the misfortune of dropping it yet so I can't comment on how well it would withstand any kind of impact. This drill is great bang for your buck. The chuck makes it easy to swap bits in and out of and with little effort, to tighten into. The head snaps out easily to exchange with other attachments. I have used the following attachments so far (and will review each separately, but here's a taste) - Inflator: I'm surprised at how often I've already used this attachment - it works really well, has little to no bouncing of gauge needle (as long as you're attached to the item you're inflating properly) and comes with pin attachments for balls and beds, etc. It's worked great for our bikes and bike trailer wheels; I haven't tried it on the car yet. Hedgetrimmer: This little trimmer does a great job - it's not for big jobs, but for finessing a project it's perfect. I have several Yew bushes to the front of my property and for shearing, tidying up it's great. I've been cleaning up the bushes about 1" depth at a time and they look fantastic. Overall, I love this drill. I love the fact it's light, smaller profiled, has a ton of power, the batteries are interchangeable with other B&D products I already have, and, the fact I can by a whole barrage of tools for hundreds less by buying just the attachments and not individual units. Highly recommend.