Walmart and Oasis - BIg with Lots to Offer but Quality of Service Not There

Took my parents on their first cruise for their 50th anniversary.  We had cruised before several times RCI with good experiences.  The ship is absolutely beautiful with lots to offer, but the overcrowding and over-stressed staff leads to poor customer service and an unfriendly experience.  The boat is handicap accessible but far from handicap friendly.  If you are in a wheelchair forget getting through the Promenade deck, which you must do to get anywhere.  Selling of goods, parades, Zumba, line dancing etc all take place here.  Every little thing that can be charged for extra is done.  Long lines for customer service.  Long lines for eating or any activities. Long lines for elevators that close on you before you are even completely in the elevator is the norm.  The buffet is a disaster with crowds and no tables.  The staff seemed stressed and spread thin and were unfriendly. Our last day at 7:15 a.m. someone walked in our room after a brief knock to count the mini bar before we were dressed.  On Prohibition Party night a staff member was more interested in how fast he could get everyone in and took it upon himself to press the button to make my mom's electric scooter go faster that he rammed her into the wall, catching her toes.  By the next morning they were severely black and blue and swollen. When reporting the incident it seemed to be more my mom's fault as to why she let him touch the button, as if she had give him permission, than concern over her injury.  The injury was severe enough for the ship doctor to order her to bed rest for the remaining 4 days of the cruise.  No apology was given, no offer of compensation other than a specialty restaurant dinner for someone ordered to stay in bed.  Very disappointing and felt the trip was stressful and a waste of money.  Keep in mind when booking that it does have a zip line, rock climbing, carousel etc, but these things are only open a few hours a day and you will wait in long lines to do any of them.  We felt the dinner food was good, our dinner service was good by Nicholas, and one specialty restaurant first night in Chops was fabulous.  However, the dinner for 5 did cost $268 dollars with tip, which would have bought  an extremely nice dinner for 5 most anywhere on mainland without going on a cruise.  We will try a different cruise line in the future.  It's a shame!