There's a similar thread in the ergo section, as a lot of those shortcuts relate to arrow placement it's kind of relevant.
https://geekhack.org/index.php?topic=71277.0My layout is in there and in my opinion, is brilliant for text editing. Having arrows on ESDF and IJKL with delete on Q and P and backspace on space bar make text editing really easy. The only keys I'm not super happy with are home and end but I don't use them a massive amount at the moment so I'm happy with them where they are (I guess home/end could go on W/R and U/O maybe).
