Thanks to the XR technology (extra refraction), this lens is light and small. It's only 510 grams and 3.6 inches long. From afar, you would mistake this for the kit lens. It can focus as close as 13 inches thus the name "macro". It isn't technically a macro. But hey, it's still pretty good.
I know what I wrote above is just nonsense to you. And don't worry. Again, this is an informal review so I won't bore you with charts and graphs to show you the lens performance. I will show you it's performance with the help of my newborn daughter's pictures. =)
In my opinion, it is a great lens. So if you want a lens that offers very good performance for a very good price, the Tamron 28-75 is a good choice. I'd give it a 9 out of 10. It's not perfect, but it does so much more than what you would expect from its price.