Avoid 150/152s like tbe plague. They have too little performance from grass to be worthwhile.
Well, avoid the plague for sure. As for 150's operating from grass runways, I have 29 years, and 3000 hours of that operation in mine which assures me that it's perfectly fine. Now, in the early days, I did lengthen my home runway from 700 feet, to 1700, to increase my margin of comfort, and allow full loads on hot days, so I agree the 150 is not the best plane to haul a load out of a short runway on a hot day. The planes which haul the loads out of short runways well are more expensive to operate, and insure, and less well suited for initial training. But broad brushing any type as inadequate is not helpful.