I want to start by addressing a common knock against mini pumps. Yes, it takes a lot of strokes to get the pressure up to where you normally would ride your tubes, but to me that's the beauty of this pump. It's incredibly small even for minipump standards, and it's got a controllable valve for threaded CO2 cartridge so you can start hand pumping first to make sure the tube is seated, and then use the CO2 cartridge to get to your desired pressure. I had to use this a few weeks ago after a particularly unfortunate descent, but it worked like a charm and I was absolutely glad I had this with me! Before this I used to carry a dedicated CO2 valve and a mini pump, but with this I've replaced two items with one, better functioning, smaller, and lighter item! Love it.
After one year and change these levers still get the job done. They have rescued many a stubborn tire from damage and make replacing tires easy. Leave the blue, black and coated metal levers on the rack at your LBS and get these. One exception would be those of forged aluminum from the company that starts with an L. The price is right and they do not gouge my seat bags. Good design at a reasonable price.
More than a year later this pump is working fine, The dual pressure mode makes it a snap. For those that find it tedious to hold a pump on a presta stem and inflate a tire look for a pump with a hose connecter - myself included these days.The rubber seal on the pump head sheds a slight bit on the valve threads but should last a couple more years before replacement is needed. A very good light pump for your seat bag.
Used this tool for over a year gave it chance to prove itself. Operating the chain tool with wrench on the separate tire tool was not a good experience. Not well thought out in my opinion Crank Bros does it better and so does Blackburn. The plastic portion of the tire tool eventually broke and my tires are not that tight on the rim. An 8-10 mm wrench instead of a tire tool would be good. One should use separate tire tools anyway. The pop-on 8mm Allen wrench is ridiculous. Expected a mature product from Park this one is a failing sophomore effort.