I have one by Black and Decker and love it. I have burned out, seized, and worn out many gas weedwackers over the years. The electric one is great. No issues and always starts!
I did buy a second battery so I always have one in the charger. I have a commercial property that I use it at so sometimes the first battery runs out.
There are a couple of them on sale now at Lowe's. I have had mine for about 10 years so that model is no longer available.