What scale do you play OpenXcom at?

[bramcor]

I was wondering what scale you guys play OpenXcom at and why?

I like to go for 3x or 4x depending on resolution of the screen I use. In part to make buttons large enough to tell apart and hit them with the cursor, but also because I like the pixelated aesthetics as I remember them from playing UFO:EU on my old 15" monitor

So do you guys take it as closely as possible to fullscreen extravaganza or do you enjoy keeping it tight at 320x200 px?

[SupSuper]

I just use x2 (640x400), it's still small on my 21'' monitor but not too small.