This topic comes up frequently but I think the search feature isn't working.
>>I have seen people get frustrated trying to back onto a bus >>when everyone is waiting impatiently.
Once you have gotten on a few times, you will not think twice about this. I was VERY nervous about the bus and lived to tell the tale.
A lot of times (eg if you are getting on at a park) the bus will be empty when you get on as you board first so you don't have to feel self-conscious. The drivers will help you, too.
Tips: (1) put the
ECV in turtle and go slow, you get great control. (2) Backing onto the ramp is a piece of cake. The trick is getting positioned on the bus. If you turn your wheel VERY sharply counterclockwise once the ramp is lifted onto the bus, you will turn in a tight arc and can then just pull forward into place. (3) there are instructions for the
scooter in the back pocket. if you can stand, you can back up onto the ramp, back up a bit to give yourself room to get up, and then get off the EVC and put it into free wheel. This will enable you to position the scooter without having to essentially parallel park to get it into place. this totally takes the nervousness factor out of the equation as all you have to do is back onto the ramp, which is fine. (4) if people stare, so be it. once you do it a few times, you will be a pro. (5) plan your trip to take the boat or monorail first so you have a day to gain confidence in the scooter. (6) in my experience, the people who have trouble positioning themselves at rides and backing up are the people in the 4 wheel WDW scooters, not the offsite rental people in 3 wheel scooters.
The monorail is easy. You pull on using a ramp & back off using the ramp. I took the boat from the Swan to MGM and thought it was the easiest of all, tons of room to maneuver. No problems with water level. I'm sure others will be able to comment re the WL water level.
Good luck! If I can do it, you can too. I am a giant wimp and didn't try the EVC for years due to concerns like yours (used a push wc), and now I am a total convert.

Cupcake