Lindy,
I have had an armrest in mine since late Jan. I got the one off eBay that comes from Canada. It has a storage area in the top.
Pro:
Added storage is great.
Being able to rest arm on a trip is just what I wanted.
I have had other people in my car that are wider than I am, I have a 36" waist,
and no cramped feeling, but always with passenger back and me forward.
It comes real close to matching the interior and doesn't look add-on.
Con:
It has a flimsy feel and it makes me wonder if it will hold up, but in 3,500 miles,
no problems.
When I have a passenger their leaning against it causes it to touch my seat and
cause a squeek. So I have to push back just a little since I hate squeeks.
I had no trouble installing it, but some have fussed about the emergency brake
or the screws.....I don't think they did it right.
There is a minor difficulty hooking seat belts, but not a big deal.
It is harder to reach the tilt mechanism for the driver seat, but I got used to it.
Would I buy it again? In a heartbeat and even if 30% more. If there was a sturdier, stronger, better design would I change? In a heartbeat even if double the cost, but it needs some of the features like storage; just quiet, firm and easier to use other features.