Love this thing. 3-point cutting wheel is fantastic for weeds, grasses, brambles small saplings and brush under 1” thick. Design uses the 1” arbor standard so it’s super EZ to shop for replacement cutting wheels of all types. Neighbor asked if it’ll accept a 12” dia. chisel cutting wheel w/ 1” arbor? so we grabbed a forester blade to find out: yep perfect fit. If you try that don’t chop leg off. BCA1220 is quiet, clean, very light weight strong unit; attachment to 1420 power head is a breeze. Love the multi-tool and battery integration; for big jobs I use the mower’s 10aH battery + shoulder strap and literally can cut for hours. Never feels underpowered. 2 changes I’d love to see next year: (1) some more Ego blades for different conditions; & (2) a stronger cutting wheel guard: my plastic guard is taking brunt of force whenever cuttings fly off @ high rpm; it’s not going to live long. Other than that, def 5 stars ⭐️ bc this thing is awesome