Great & affordable "Always top" for full-frame!

I am an amateur photographer of his Canon 600D has bought in March 2012 along with the kit lens 18-55mm & 55-250mm zoom lens an affordable Canon. The standard lens makes MMN also good pictures, the Zomm rather not. So I was looking for a lens that has more focal length as the kit lens, but not too much. And it should be low to start with.
I came across a used 28-135mm lens incl. Lens hood and UV filters encountered and had "slammed".
I own it now almost half a year and must say that I am thrilled and buying not regret it! Captured images so far are all keen (unless I verwackel or have incorrectly set). The AF system with USM works very fast & accurate.
It's definitely an improvement over the kit lens and I use it since I did it, as "Always top". Only very rarely do I use the 18-55mm and 55-250mm which virtually no longer.
Only the weight was in the beginning very ungwohnt, I was the lightweight kit lens used. But quickly you get used to it, so that should not be a shortcoming. There must come the quality of the images come from (more used in construction glass and metal).

The problem raised by many independent extension of the tube I can not confirm with my lens. The tube wobbles very easily in the case, but that's not a problem when wearing or holding it vertically.

I highly recommend this, but rather favorable original lens, recommend it to anyone who likes may have a little more leeway in terms of focal length and do not want to spend much money / can. For landscape photography (which I prefer for now) it is not very appropriate, however, because of the crop factor of APS-C cameras. But, there are anyway the ultra wide-angle lenses.

Strong buy recommendation!

Supplement 16.05.2013
Meanwhile I use this lens to an elderly EOS 5D. And I must say, I am even more pleased as before! The autofocus is faster and more accurate as at the 600D. As you can see the EF lenses are just best to use full-frame cameras.
Incidentally, my tube rides still not made independently. Not that I would wait for it or would like to see. But with all what you can read I seem to get lucky with my 28-135mm lens.
Therefore still strong buy recommendation (especially for full owner)!