The only real disadvantages with a .60-sized trainer are:

1) Bigger engines use more fuel

2) The larger plane will be a little harder to pack for the field

The advantages that were previously stated (large size is easy to see, larger and heavier planes are more stable in the wind) more than make up for these considerations.

While I stand by my recommendation that the Tiger Trainer .60 Super Combo is an excellent plane and an outstanding value, I also think the Sig Kadet LT-40 is a wonderful airframe. Sig offers a ready-to-fly version with an Aviastar .46 ball-bearing engine and radio system direct from their website for $319.99 plus shipping and handling. I also believe that the Hangar 9 Alpha .60 RTF is an outstanding trainer package.

All three of these planes are well made and nice flying; you can't go wrong if you choose a plane from this short list.