Fortunately my 3 current tractors are all AG tractors and don't have the seat switch. The MF 1433V had it for the first 2 or 3 years I had it. It was a plastic switch, got a little water in it, and it froze and broke. I quick fixed it so I could use it and never got around to actually fixing it.
The wife never noticed the difference and she used it more than I did. I found it very annoying to say the least. The most common thing for me was to lean to the side or raise up slightly to see around the
FEL loading something and it would die.