I own a Bluebird and get good results for the money, but is an absolute pain to push on even slight grades sometimes. Also gets hung up on grass clumps in sparse turf. Had a large yard to do and another one with steep grade and rented the Lesco for the day and it did great. Hydro drive and pneumatic tires went over all terrain real smooth, but alot more money.
I am very happy with my Lesco 20 renovator. Mine is an older model with hydro drive and manual hopper. The hydro drive will go anywhere you point it. The new ones have a hydro hopper also. I believe it gives you better control of seed dispersal. You won't be disappointed with one of these machines.
We've had such a bad year with lawns being totally wiped out by insects. Slit seeding for total reno's is going for about $65 to as much as $100 per 1000 sq ft. including spraying leftover weeds with nonselective, seed, and starter fert. Just so this thread doesn't get too sidetracked, I must say I will probably purchase the Lesco unit in the Spring if the predicted seed jobs come through.