Be warned, these keycaps are like a warm hug for your fingertips and once you've experienced it, any other keycap will feel inferior.
I was using MBKs, then DDCs, then these. I loved the DDC keycaps, but i use a lot of vertical combos and i find these a lot easier to find the sweet spot on. Both are a huge improvement over MBK imo. The spherical shape really nicely cups your fingertips on these. The attention to detail on the 1.5u thumbs is incredible - the subtle angle to them is extremely comfortable.
I had no issues with stem size as noted on earlier batches. These don't seem to collide with my switches but they do hit some mounting bolts on the FR4 plate so i have dental bands under the caps to space them up slightly. On twilight switches, these are buttery smooth and silent.
In the photo i have LDSA thumbs on the innermost, DDC, then LDSA convex on the outermost. I like the alternating shape for distinguishing where my thumb is. The rest of the keycaps are LDSA on a typeractive 5 col corne.