i have had to use it, i have migraine and cluster headache issues. i have had decent interpreters here and there, but i lose central vision with a severe headache and i struggle to be cogent, use all 'parts of speech'... horrible in that moment unless a hearing friend is there to monitor. my hearing friend, at one point was like, 'this is ridiculous, she said...' and it was a huge thing that was messed up throughout the visit, crucially important.
another time they clicked the interpreter on and off, so i had to educate each one that popped up, i don't have the energy to train each terp as i am there in pain, unable to really take care of myself (i mean that is why i go to the ER, i've exhausted my coping skills) and then i have to repeatedly take care of the interpreter who pops up. IT SUCKS and it means the onerous to my medical care is on me!
it also makes it hard to see the terp, small, 2 dimensional and vertical, when i am mostly horizontal-> it is fine for the 'until a live terp can get there' but there is no way this is another solution to providing equal access. it. is. far. from. equal. access!