I just moved from a one-piece ergo keyboard (Truly Ergonomic) to a Sofle RGB after spending Way Too Long comparing the available options. It's pretty good so far. Some early thoughts in case they help:
- Split design lets you put both pieces exactly where you want them
- Number key row is right where you expect it, so you don't need to switch layers for commonly used punctuation
- It's a popular keyboard, so it's not hard to find resources
- Column stagger feels natural right off the bat
- Rotary encoders don't seem very useful so far; I feel like Lily58 might have had this right
- Modifier keys don't feel natural yet, especially those on the outside
- I never thought about which thumb I used for the spacebar until this keyboard was staring at me
All in all, I'm happy with the Sofle and anticipate using it for a long time.