Difficult of choosing!

Hi everyone, I want to use USB host shield in my project. I found there are too many USB host shields- from Spakfun, from dfrobot. Which is easy to use with out error and weird. I heard there is some problem with sparkfun host shield. Please give me a advice which one to choose and how to overcome existing problem. By the way I want to use with UNO. Thanks.

Another alternative is to get something like the Freetronics USB Droid board that is an Uno with host on it. I reviewed this board here: http://srmonk.blogspot.com/2011/10/freetronics-usb-droid-review.html

I have also used the Sparkfun USB host shield without any problems in some of my Open Accessory projects.

Thanks Si.