My wife and I enjoyed our stay. Convenient location and good value for that part of Waikiki.
Check-in process was easy enough but know that you have to go through a short security briefing and fill out some paperwork, including emergency contacts and medical disclosures. We were also stopped by security and the concierge on several occasions entering the building, apparently Wyndham guests are issued wristbands (which we obviously didn't have). It wasn't a big deal, just something to be aware of so you're not caught off guard like us.