The ability to import sounds to extend the ROM package would be a nice feature in this day and age where a few gigs of flash ram costs a few dollars

The SR-18 does not have this cool feature either,the sounds are good,lots of cool presets but drum machines still have a very long way to go before I will get too excited, I thought this was supposed to be an upgrade. ?

My favorite features:Fully customizable drum kits.

Love the tap tempo feature with foot pedals that both Alesis drum machines have

I believe this to be the best sounding drum machine made today for the price, it is fairly simple to program, has the most real sounding drums has a nice fill feature