We installed 360 square feet of Thinbrick(tm) on the interior wall of a townhouse. The task of connecting so many bricks with mortar was doable but difficult with the most common methods. The Quickpoint Mortar Gun really cut the time and did a MUCH cleaner job than I could do with a mortar bag or pointing tools such as a 5 inch pointed spatula. In terms of price, a mortar gun isn't worth the cost of a small job - like a chimney - but will almost certainly allow the handyman to get a cleaner and much quicker job done over a large area. If it's not obvious, connect your own 3/8" drill bit to the mortar gun. I just used a cartridge even though I was able to remove the cartridge. An AC drill works best - charging a battery-powered DC drill would be a pain. There's a YouTube video by Quickpoint worth watching if you're new to the tool. I caution against paying too much attention to the mix density he recommends for the tool (do a YouTube search "Quickpoint ContractorsDirect Mortar Tool"). We found it easy to (almost) burn an electric drill if the mix is too thick (as they demonstrate) The whole process works best when the mix is mixed thick The auger drives it more reliably, the drill won't run or overheats, but through a few minutes the mortar will be well formed with the striking tool. With the attitude. Too loose, of course, there's a liquid mess with patches of grout all over the surface of the brick. Clean the tool thoroughly after each use! A highly recommended tool - if the job is large enough to justify the price. When I was done, I sold mine on E Bay for half what I paid for it: the buyer got a near-new shotgun and I cut my cost in half. Both parties left happy.