Opinions on Haybuster 107 drills

There are a few of these drills for sale on auctions and dealers nearby what’s the good bad and ugly on them . I would be notilling into sod and doing some interseeding mostly Timothy and Orchard grass. I have fairly level ground only one hill field mostly clay soils with some rocks. I would like to get away from tilling up level fields and picking rocks.

Opinions on Haybuster 107 drills