Is Quantaray 100-300 good

I need to buy a good quality of lens for my D-Rebel, I have try a lot to find a lot over internet and finally i have got two option available with me one is to go with Quantaray 100-300 or Tamron 75-300.Out of this both which one should i prefer because i am very deice with it.If any one have used either of the lens can the recommend me and at the same time i would be grateful if i get some more information about them.

I don't have any much more idea about Quantaray 100-300. But i can give you information about Tmaron 70-300.It's an very nice slow telephoto and at the same time it's value for money too.While using Tmaron i have found that the colours are bit little dull but when don't need any speed i would like to go with prime telephotos which are faster and sharper.