KM130R here - had it about 8 years. My application is usually my 6 acres: lots of string trimmer use and edging.
I have the string trimmer, brushcutter, straight shaft edger, pole pruner/extension, and power sweep/brush.
Besides my mower, the KM gets the most use. I specifically did not get the blower and hedge trimmer. To me, those are specific-use machines. I guess the hedge trimmer would work for taller hedges, but I didn't need that and thought it would get unwieldy (same with a long blower).
As Eric points out, the BR600 is great. I use this and a smaller blower (BG85). And
I've pushed this thing to its limits, and wouldn't want a smaller powerhead - that's just my opinion. Awesome machine and attachments. Worth the investment if you 'use' them. Hope that helps out.