ADP Outside Sale Representative interview questions

I went through 4 separate days of interviews. The first was a phone conversation with the recruiter for ADP. It was a pleasant conversation. Stage 2 was meeting the VP of sales, which went well and then led to me scheduling a day on the road with a person in my presumed role. Stage 3 was an entire day at ADP. Seeing their training session, interviewing with a sales manager, riding along with someone in my role, and then two more interviews with different sales managers. I was there from 8am to 5pm. Stage 4 was a sales role play with two of the sales managers. I made sure to follow up with everyone I was in contact with those days, thanking them for their time. I dressed in a suit and tie and received fantastic feedback. I honestly thought I had the job. I had to use a vacation day in order to complete step 3 of the interview process, but it seemed worth it. After the role play, I did my normal follow-up, with the VP and two sales managers. I was emailed by the recruiter a few days later letting me know I didn't get the job. I was pretty disappointed. I had spent well over 10 hours during this process, not including the driving 1 hour+ away to meet the VP of sales. I can accept that as part of the process, but being turned down after this much effort stunk, and to not even receive feedback or any emails back from the people I did interview with feels really crummy from them. I feel like I should at least have gotten feedback on where I can improve after this time invested. 10 hours over 4 days, over 4 weeks the process was.