Brandner Communications interview questions

The interview process was easy, it is a small family-owned company. Do not trust this company. The company could be a good 3rd option or 4th option. After 3 rounds of interview they gave me an offer & during the negotiation email they withdrew the offer saying that they thought I was not happy receiving the offer. How can someone know if I was happy or not through an email? They were very unprofessional, it is more like the decisions depend on their mood. I have never seen withdrawal of an offer. I am attaching my offer details, hope this helps someone and be cautious and not trust them blindly. They also have 3 months probation period which is a rare thing in USA, it is possible that you could be thrown out after 3 months if their mood is bad by giving any random reason. They have 5 days work from office and block vacation dates during December. Salary: $78,500/annually (paid bi-weekly) 401K/: 401K Match 100% of first 4% (first open period following first full year employment) Dental Delta Dental Washington Holidays Approximately: 10 days Vacation: 0-5yrs 10days, 6-10yrs 15 days, 11 plus yrs. Sick Leave: Approximately 40 hours per year Non-Compete: Required Freelancing: None in same industry Dress: Casual yet professional Reviews :90 day & Annual (in May/June)