I've got a set of 5 Star's for my 686+ (7 shot) and 66. Here’s my thoughts ... They’re well constructed and a little heavier than the HKS. Putting them side by side to the HKS versions I find they are both about the same height and width, but the 5 Star are a tiny bit higher and better built. Their loaders also turn counter-clockwise, which is actually better, as it turns the cylinder away from the frame.
My only complaints are that they are double what you pay for HKS and also I have noticed that because they are metal, the rounds tend to rattle when carrying. The HKS older models did the same thing but after they released their -A versions, rattle is no longer an issue. They offer the j-frame loaders in black and I wish they’d also have that option for the K and L frames, but overall I’m happy with them.