Dasuquin yay or nay?

Anybody here have experience with Dasuquin? Do you feel like it helped?

My boy is 13 and gets around  well and doesn't act like he's bothered. He stills runs and plays, still sneaks up on the kitchen counters. If I've noticed anything, it's just that he's a little slow with stairs. Overall, nothing about him is concerning me or making me feel that he's painful - it's just on my mind because a coworker was doing some reading about arthritis in cats. Which made me think, hmm he is getting a little older, his little joints probably are a bit sore....

I've seen Dasuquin used quite a bit in dogs but have never really gotten much feedback about it. And I know this is an area that is awfully ignored when it comes to cats. So, just looking for some feedback  I can get it at cost from work which is why I'm looking into this specifically over other products.

I have never used Dasuquin, but have seen/heard of people who have and have had success with it.  I give my arthritic kitties Cosequin, Krill Oil, Zeel (homeopathic), Tramadol, adding Duralaction aka Microlactin) and Turmeric for them.  I have been doing A TON of research on how to help them.    My kitties have pretty significant arthritis though, so we are pulling out all stops for them, one is 14 & 1/2 the other will be 7 years old on Wednesday. 

I don't have any experience with Dasequin, but have used Cosequin, which is one step below it.  It DID give my old guy some relief and he started jumping up the the counters again .  And I've heard good things about Dasequin, from people who found Cosequin no longer did the trick.