Instruct: Classify Amazon reviews into positive or negative sentiment
Query: works great so far

my 14 year old dog has had arthritis for a few years now and everything i have tried has either stopped working or did not work at all. i decided to try this because it has a higher amount of glucosamine in it than other products. well he was limping pretty badly and also whimpering on another product. so i switched and started him on this and the whimpering stopped by day 2 and the limping got better almost just as quickly. he has only taken it for about 8 days now and while he is not jumping and acting like a puppy like other users of this product claim, he is free of limping and seems to be happier than he was. he likes the taste to, though i do have to pour it over some canned dog food when i give it to him. so far this product works better than anything else i have used to i will definitely be sticking to this.