My 2 cents, and I am probably the only one on this board who has owned both.
Purchasing a Format 4 is one of the worst business decisions I ever made. It is a boat anchor compared to the Martin. After the sale service also, well frankly SUCKS. We had tech service from Felder in and they make every problem worse, on mulitple visits.
Run, Run, Run away from Felder.
Martin can be a little tough to deal with up front, they are very German, but the product is incomparable. You are in NY, I highly recommend you work through their dealer Simatech, I will list his contact information. He delivered and rigged my saw, which is very large, for no extra charge. He is awesome, here is his info.
Ed Papa
Simantech Inc
1-800-489-6694
http://www.simantechinc.com
simantec@optonline.net
Grothouse Lumber Company
Andi Stratus Pro, ILS12.150, Solidworks 2012, AutoCad 2012, MasterCam X6, Coreldraw X6