With sentiments I can agree with PrimaLove of VocaloidOtaku and her RL friend as Len performed this skit during the Anime Expo 2011 Masquerade.
I must say I love the accent and the entire persona she adopted as Prima. A bit more effort than the Mirai no Neiro cosplayers, but then again this is an Engloid so I am obviously and unashamedly bias.
Highlights include her referring to Miku as the “dreaded pigtailed monster” and Rin as Len’s “insufferable sister”.
It is probably not the kind skit non-Engloid fans would enjoy (I would say ‘Vocaloid fans’ but some Crypton fans might take offense) but it is better than most your Convention Masquerade fare.