I am an owner of a Glove 80 and I cannot overstate how benefitial it was for me. It improved my typing speed and overall comfort. Also, it forced me to type correctly, using all my fingers and place them in the correct keys.
To this day I think this is one of the best pieces of hardware that I bought.
Locating: One direct referal from a former colleage, and another one from LinkedIn (I applied to it)
Interviewing: I just treat the interviewer as partner rather than a rival that is stopping me from getting the job or something. Being honest and know what you are talking about is key.
Surviving: Didnt really need to, all the companies I worked in were good enough.