I have the FL300R flash and love the size. I use it attached to the camera and sometimes in RC mode. It bounces off the ceiling pretty well and cycles quick enough for me. I am not crazy about the on/off switch and sometimes I am not happy with the coverage of the flash. The on/off switch does not provide me with feedback as to whether the flash is on or not. The coverage issue is mainly my opinion of the uniformity and light coverage from the flash. I try different settings like wide or tele and bouncing the flash with limited success. What advantages would I get by moving up to the FL600R flash? Is there any other flash I should consider in the $300 or less range? Or, is this flash about all I should expect and I should just learn to use it more effectively. Perhaps I should use two flashes in RC mode for better coverage. Thanks for any advice.