I also have ordered a lot off of Etsy and have always been very happy with my purchases. Just make sure that you read the descriptions really well and actually take out a ruler to get an idea of how big/small things really are in real life. Sometimes their photography is too good and things end up looking bigger than they are when you get them......not exactly a misrepresentation if they flat out gave you measurements. I am about to order this bracelet today:
http://www.etsy.com/listing/29164537/wide-twist-cuff but sent questions to the seller about my own measurements and what he thought would work best. I have never ordered from him before so I don't know how it will turn out but his feedback looks good. You just have to be willing to visualize what they can do for you but in return you get a custom made piece at a good price. I LOVE etsy.