Avery Dennison Project Manager interview questions

I went through thier process, which seemed inefficient: 1st: Phone interview by Avery Dennison HR. 45 minutes. 2nd: Phone interview by hiring manager. 30 minutes. 3rd: Phone interview by 2nd HR. 30 minutes. 4th: All day interview - from 9am to 2pm - includes 45 min one-on-one interviews with 7 different people. All seems to go well, but two were on the fence. This should have been one group interview for an hour or so to not waste everyone's time. I followed up 4 times a week for the next 3 weeks and was advised I was still being considered (or stringing me along), when I finally got the standard generic email stating I was not longer considered. Tried to follow up to get more feedback on what exactly I was lacking (as per thier own web site states to do) - and I really wanted feedback to prepare me for further interviews with different companies, but still got a lack of response. Disappointing, to say the least, in thier lack of communication. Felt I was just strung along for a long time until someone better came along.