Well I like this lens better than both the 18-55 IS and the 17-85 IS USM from Canon.
Actually I find that if this lens had OS it would be one of the best standart zooms out there, especially since u get this lens with a macro "bonus"
But it has a few downsides, the zoom ring doesnt feel very good, its moving pretty lifeless, and the cam extends quite a bit.
72mm is a big filter size, and will cost u if u want to use a PL filter.
And as mentioned before, it doesnt come with OS, which is just a pity, but the for the price its pretty much the best lens u can get with this zoom range.
Though, if u dont need 70mm, I would suggest u to look at the Sigma 17-50EX 2.8 Macro (Hope that I got the numbers right) which sounds pretty neat since its an EX model and has a constant 2.8F stop.