I did Mick - even got a spare set of electric ones and their loom as the MGF came with manuals - and their operating stick wouldn't work with where I was trying to place them. (wouldn have meant trilling through the stucture of the A-pillar and probably have them emerge into the dasboard!)
They're nice, simple, shapely units but I found I couldn't get a view over the haunches I was happy with without them sticking up at a stupid angle - which is the sort of compromise that always shouts 'kit car' to me. The passenger side probably wouldn't have been obstructed by the A-pillar so badly, but I didn't get that far!