I don't own it, but I have held 16-Bit's copy : P. I learned last year that it was actually made with the WonderWitch user dev kit, which is pretty cool.
God, I had this pre-ordered at Play-Asia at the time, but because I got impatitient and wanted to get something new, i traded the pre-order money to some lame gamecube Gundamn game. I was stupid!
That's good to know 'cause I thought I was missing out. I have some rarez for the swan and I missed this one when it came out. Always want it to try it.