Tried to reply overnight but the app seems to have issues..
OP just wondering where you saw that rabbits need 4 hours a day? I love our rabbit (have had a few!) but he gets maybe 4 - 6 hours attention a week, not each day! And half of it is while his cage is being cleaned..
There are a few negatives (including that the gov. won't release a vaccine for myxi, and it's horrendous to see if your bunny is unlucky enough to catch it), but definitely low maintenance.