Even alongside lenses costing a lot more, this Tamron 70-300 performs well. OK it's the budget version without the anti-shake bells and whistles, but don't let that deter you. It's really excellent value for the money. I have a Nikon D300 + Nikkor 17-55 and 105 macro, which cost an arm and three legs - this cheap Tamron fills a much needed gap in my selection. I previously tried Tamron's 18-270 (but I might have been unlucky with the particular one which I tried) - at maximum range, the 70-300 out-performs the 18-270 version. Against a cheap Nikon 70-300, this lens exhibited less chromatic aberration. My Nixon lenses are both heavy brutes; this Tamron is refreshingly light to carry around and it also has a macro switch which does not do a bad job either. Unlike other telephotos, I have had no problems with lens creep or brewers droop and if needed, it is totally compatible with full format (FX) Nikon cameras.
Amazon's provided their usual excellent service as always, and even when the dispatch company lost my first lens, Amazon express shipped a replacement which arrived in time for my trip away - very well done Amazon!