Just picked up one of these trimmers after using a re-chargable Bosch Isio shape and edge for the last year. Previously, cutting the bush back in my front garden took the best part of the afternoon to do. These trimmers managed to do the same job in five minutes.
The no-nonsense approach with these trimmers is fantastic!
The reason for a four and not a five is that in the first use of these trimmers I have found the bush to be slightly less neat than having cut back with the Bosch Isio.
To be fair though, it is like I am trying to compare a Ford Fiesta around town against a monster truck!
I was concerned about going with the corded option, but after having been on a re-chargable unit until now (which would generally run out half way through the big trim) I thought I'd give it a go. This model comes with a handy belt clip which helps to keep the cable out of the way, which helps with the safety aspect.
Highly recommended if you want to get the job doe quickly.