Both of them are not quite great. It didn't annotate data correctly in the ROM.
I want to try to disassemble ROM as binary file in IDA. But I have to hit command C to the place that I think is code segment to disassemble small related portion. I know that ROM starts at 0x2a. But this didn't give a whole picture of ROM. I want to disassemble the whole things.
IDA is great! I haven't used it for 68k (not sure if it's supported yet), but radare2 is pretty great as well, and free. However, if you really want to disassemble 68k ROM, MacNosy is absolutely your best bet, and Steve Jasik still sells it for $99 (which comes with his famous debugger and CoverTest, an excellent test coverage tool for vintage Mac code). I bought my copy a year or two ago; given its pedigree and my history with all of the above, I was more than happy to pay.