Ours is a bosch and is frameless which is great for cleaning, no knobs or frame to get in the way, used every day for the last 10 years and still like new
I have frameless one and love it as it is so easy to clean and it looks lovely but somebody dropped a knife or something on it and it is chipped. Have bought framed one for new kitchen but mainly because I couldn't get exactly what I wanted without frame.