My experience with AE has been good, but disappointing. I originally started out with the AE87A 3 line phone. really loved the phone and discovered there were 2 versions of the unit. the newer had extra wiring for station lights if you changed out the light bar from a 3 position to a 6 position. it could be wired like a ITT 576. anyway, the down side was the networks they used in the #89, and 90 phones. equivilent to the 425, that were real nice UNTIL they came apart... I had a few they came apart and got that gunk electrlitic paste all over the place, or it just leaked. thats what turned me off with AE.... so I dropped collecting the phones and stayed with WE and ITT...