[JakaJancar]

Love it!

I always liked Balsamiq, it really forces you not to obsess about the pixels too much, but it was so slow/bloated/buggy, like something from the Java on desktop era. This is much smoother!

[Brajeshwar]

Well, yes, it was from the Flash era. It started in Flash/Flex. I love it and used it for a very long time. Huge respect for Peldi (Balsamiq founder).

[hermitcrab]

IIRC the desktop product was rewritten and is still being updated.