The 90 will be good for trimming and edging. But trust me the 130 is the way to go. I have both and had the 90 first then got the 130. The 90 will be alittle weak on edging a overgrown sidewalk or curb the first time but would be fine after the first go around. They are both good on fuel and like I said the 130 is only .2lbs more. When I pick up mine I don't know which one I have untill I fire them up. I have the trimmer, edger, blower, saw, and tiller for mine. The next will the the adjustable hedge trimmer and extensions. Hope this helps!
Cheetah 61in 34hp
Vride 48in 24hp
SFW 36in 16hp
Trac vac loaders and bagger
Billygoat 1302sp blower
Stihl handhelds/322l & 580BTs husky
2003 GMC C4500 14ft dump
1998 Chevy 1500 Z71 with 8ft EZ dumper
2003 GMC W3500 18ft box cabover
6.5x12 landscape trailer
Jrco leaf plow
Part time for now and solo for now.