Arensito is just too much for me. Colemak generally scores as well or better in tests (and in feeling!) and achieves it without madness. ;)
In my opinion, Arensito was probably made for one keyboard model for one man. Good for him but not for me then?
Only one way to find out!
I notice there are many converts and multi-layout users here also
I know Arensito. On the Kinesis it is very comfortable, however on a standard keyboard you will find some patterns annoying (mainly mo/om digraphs in my experience). And the bottom row is less comfortable on standard keyboards as well -- on the Kinesis it is very comfortable.
Conclusion: if you have a Kinesis go for it. If not, try another layout.