Through 1994 I was building up a nice A2000 system. First addition was a 3.1 ROM closely followed by a friend's A2091 card with some fastram and a 50MB scsi disk. After that came a 28MHz 68000 cpu card and an A2320 display enhancer. It booted in 10 seconds from power on and about 9 seconds after a reset. I was learning 68k assembly and spent rather a lot of time stepping through programs and checking out system structures in MonAm - even when a bug caused a crash I'd be back in MonAm within 15 seconds.
In some ways, that system beat anything I've used since. An Amiga PPC debugger that could hold a candle to the functionality of MonAm would really reignite my interest in programming.