I am sorry,forgot the name,but we have the set that attaches to the trunk.I installed them and it was easy.Only thing is that you are real nervous when they are pointed away from the bike,as someone could lean on themin the out position and snap them offof the trunk.
Did not go with the ones qattached to the grip,as you would have to take themof every time you had to take the seat off for any reason.
The chrome was bad on the first set, my dealer took care of it for me 6 months later. Current unit is still perfect.
The armrests don't get in the way of my wife mounting and dimounting the bike, she likes the way the support her arms. Personally I think they are the best looking setup available.
I also like the built in cup holder! It's a great place to put your coffee cup (or beer) while BS'ing at your local bike hangout on Saturday's. It's not a very secure place for anything while riding though.
I added a RAM mount to the bottom of the left armrest to attach my wife's Butler Cup to (also adapted to a Ram Mount).
Big Bike (AddOn). Work great and you can open trunk without swinging them out. No way can they damage the trunk tupperware in the event of a tip over, heavy load, etc. They bolt to the passenger hand holds.
Big Bike! The SO has always demanded arm rests. The absolute best ones were on my 1986 Venture Royale. They were load bearing and solid, plus they locked in the center position. SO was able to take a short snooze with no fear of leaning over too far and having them swing open.
The worst were on a Kawasaki. They attached to the trunk. The trunk ended up with cracks!
The Big Bike ones are great. They are load bearing, so the SO can use them for mount/dismount and also for shifting her sitting position while riding. They mount under the passenger hand grips so seat removal is not compromised in any way. And, the trunk opens without having to swing them open. When the armrests are swung open, they do interfer with opening the trunk.