Strengths My 3720 I love I have had two JD tractors and this is one of the best My 4200 was replced by this one and I could never be happier. This tractor 3720 has more power than you need and is macthed well to the body of the tractor. The cab inside was well laid out.

Weaknesses The only weakness I seen was the AC at time would get stopped up after long use. But after a little cleaning of the filter it was in top shape.

Overall Overall their are NO tractor that can compete with JD I have tried other and found that green is mean. And when it come to resale your green will come back. ALL in ALL John Deere is the best tractor out their and that is that!