Job is a job, every job is "At will"

There is nothing forever. A job is just a job. If you find a better job, then you go. If company need layoff people, they will tell you:" you have to leave the company within one hour".
Yes, you should apply. Why not.
Not only apply this company, also apply other company if you think it is better.
Only leave home phone on the resume, not office phone.