The best there is for macros.

I've had it for 4 months. Personally, I don't use it for streaming, but for video editing, animation, programming, 3D modeling, and of course for various shortcuts (links, folders, programs...).

As a construction, it's plastic but it's sturdy and just fine. No issues. The brightness from the screens is adjustable via the software.

Its software is flawless and it's quite easy to set up.
It has an option to reach profiles that open automatically when you're in a specific program. For example, one can set it to display a specific profile when Chrome opens.
Everything works very well. I've never noticed any lag or any problems.

The macros are literally unlimited. You create profiles within profiles within profiles, call them from anywhere, and have unlimited possibilities.

If you like automation, then it will logically be an interesting and useful tool for you. Although in my opinion it's not essential (I can do my job without it), it will definitely save you time if you sit down and set it up as you prefer.

I personally combine it with various AutoHotkey scripts, so for those who know it, just know that it works perfectly, and of course with this combination you have even more capabilities.

Finally, a pro tip is to not use folders, but profiles. Each profile you create once and call from wherever you want, while folders you have to recreate again and again if you call them from different points.

Edit:
After 3 years of use, it still works flawlessly.