Moving the handlebars is perhaps the cheapest change with the biggest impact for better bike fit. Imagine sticking your hands out there where they would most like to be, then moving the bars so they are right there! Now what change in the stem riser will make that happen, or get you as close as possible?
Note to buyer: There are two common handlebar widths where the rise connects. Get the one that fits your handlebars (existing or new). Then there are a variety of lengths and angles on the stem riser. Usually you are going up because you can remove spacers to get it down, and you are getting older and less flexible, not younger and more acrobatic. Wider handlebars further in front give you more stability (and torque), narrower handlebars further back give you more responsiveness (and maybe twitchiness). But mainly you want your hands to be where they need to be to extend your rides and still effectively manage your bike. Your body geometry is probably not so easy to change, nor is your bike frame. So start with your real body, pick or embrace your real bike frame, then tweak things with handlebars and risers and seat posts in pursuit of your best fit. Risers are the cheapest.

The angulation of the stem was perfect for my desired bike fit. The quality of the product was good.

What a big difference they must have for all mountain bikers that like riding down hill most of the time

Purchased this to replace a longer outdated stem on an older Gary Fisher Piranha MTB. Brought the handlebars in closer and a little higher. Fit and finish are good.

I'm the Dr, of course. I just wanted to shorten my stem and raise it a little for more comfort. This is perfect. Well made and easy to install, I couldn't be happier with it. Great value.