The P290 will be like all other Sig Sauer firearms, top quality and totally reliable. From what I can tell Sig is responding to the new market of concealable firearms. If you remember they came out with six new varients of their P238 series pistols recently. Evidently they are confident of the models success. I am planning on picking one up to add to my Sig collection for Christmas. The P290 will also be another addition when it becomes available next year.
I am partial to the Equinox variety of the Sig lines. I currently have a couple of them in the P220 and P229, and not only do they look good, but they perform well. I have carried a P239 since I recieved my CCW, in 1994. Out of all the rounds fired, I have never had a misfire or a malfunction. Like any top quality firearm if you take care of it, it will take care of you. Remember a Sig likes to be shot! The more you shoot them the better they like it.
I know everyone has an opinion, but I would like to add that Sig is one of the best of the best, when it comes to defensive hand guns. Very few firearm manufactures put their products to the test like Sig Sauer, when you purchase a Sig you will always get your money's worth.