Toro flex 21 is the best. The cutting head can be removed for easy maint/overhaul. It's a golf mower. Most of the residential reel mowers I've come across are just junk. You can get a used flex 21 in decent condition for $500-$1000.
I have a Toro 1000 for my yard which is similar but it's not as easy to maintain the reel as the flex.
-Roland
Mobile, AL