Chose this cruise because I've been on a Celebrity cruise before, and because it fit around the costs and dates we needed to coincide with work vacations. We are a couple in our mid 50s, early 60s.
Celebrity does a great job with preparing you for the cruise, all the information you need is online. If it's not, then you'll get it in an email before you leave, and in plenty of time! Their embarkation process is smooth, you're on the ship in no time.
The Infinity needs a makeover but it's getting one this year so I won't go into the details except to say at no time did we feel it wasn't clean...it's just old.
Nothing lacking except bar soap for washing hands. Portal Window definitely needed cleaned on outside. Room was fine!