I don't see any threads talking about experiences with the new-ish wraps for the twiddlers so I thought I'd do a quick one myself:
+Case adds extra grippiness
+Makes the twiddler larger and more comfortable for me to hold and I have slimmer hands for a guy
+I no longer feel the need to use stick tack to address the above issues
+No more issues with velcro needing to be superglued back on
+Strap is removable, as is the bar it wraps around
+Strap is nicely adjustable for those who want it
-The flap that covers the power switch confuses my pinky sometimes. Maybe I'll fully adjust given time
-The strap is a big handrance to me. It makes it harder to use the top buttons and I find it harder to type with it on
-With the strap detached from the top it's much easier to type but, although easier to grip for strapless typing than it was without the case, it is a little unsteady to hold for MCC's.
-Bar that the strap wraps around gets in the way when strap is attached and just a little bit so when strap removed. Fortunately it can be removed with little effort
I'm currently using it without strap or bar. Using it this way would be more ideal for uncomplicated maps that are oriented toward strapless use.
It's not much of a review but maybe other people will have thoughts on how to improve it or that run counter to my own.