Hi everyone and thank you for the help, I didn't expect so many replies.
Have been to B+Q in the end and bought the homelight one for £95.
Decided for how I will use it this would be better for me...just to strim my edges and paths maybe a few times a year.
I am looking forward to using it now, will save my knees, because had been cutting these areas with shears.....no laughter at the back please.... :D
All the best
Normylass :)