I wish greater use of "Land After" was made. I'd much sooner have a "land after" at 600' in reasonable met than a "land" at 150-250' - especially because that then opens you up to somebody trying to transmit in the 10 second window within which the "land" clearance is available before I really ought to be going around.
I was a little taken aback to be going around once at 150' when a clearance hadn't been forthcoming, and no "expect late" call made. I'd just drifted along expecting the clearance to come - as presumably had the tower controller. The other crew member decided enough was enough and around we went! ATC said "Why did you go around?" to which the answer was "We didn't have landing clearance below decision height." A "land after" at 500' would have done nicely.