Welcome Brent.
It's a great walk around lens which in the 20-40 mm range is comparable to primes in IQ. It's always centre sharp, in the long end of it's range (70mm-135mm) its soft on the edges.
The 18-135 is a great walk around lens, and a great lens to have if it's your only lens. There have been lots of times I've left every other lens in my collection of 7 home and just gone with the 18-135. The only criticism that holds up is it's not fast enough, and that's a criticism of most zooms.
My 18-135 images are here (click here). There's a thread on the lens here.
Lots of people who don't own this lens will tell you not to buy it, but if you look at what people actually buy, there's a lot of people who don't listen to those people.