I had a Westinghouse before that for 7 years - it was an older oven and never had an issue. That's what I'd be getting again.
Murphy's law. After I posted this my Blanco oven went again... 4th time in 8 months... and I'm catering for my son's birthday on Sunday... sigh... At least they are getting a different company to come service it on Saturday - I made sure free of charge too.
I must admit I am surprised with the Westinghouse reviews, granted my was probably about 10-15 years old when I inherited it. But, my sister just bought a new Westinghouse and loves it! I guess sometimes these things can be luck of the draw?
My advice then, as so many people have had various problems with ovens, it to ask the sales rep which company provides the best warranty and after service care!!!