I think the 50-60 toolkit made WHM a lot more fun than it had been previously. I didn't love WHM at 50 but I find myself playing it all the time at 60 and it even took over for AST as my second healer (SCH main).

I think some of the things that make it more fun are that stance dancing is a bit easier and you have another instant heal to help you out in panic moments. Honestly I feel like I see more people playing WHM than ever before now.