My friend has a 48", i dont like it. You should get the 52" if you ask me. It is only 4" difference in the mowers, go with a little bigger unless you cant because of fences or other obstacles. The 52" has higher blade speed and bigger blades. I think you would have to sharpen the 48" blades sooner than the 52". The blades on the 48" are small, there may be some benefits, but i think there are more disadvantages. Heck id make that a 52" Sentar.