Constable
"2125 1st Ave, Seattle WA" should work now, as I added the entrance with the address here ( http://www.openstreetmap.org/node/5312335624 ).
"Continental Place" instead does still lead to the alley but I can't do much about that, as (I guess) Continental Place is the building name and then it's correct to have it where it currently is at.
Basically, OSM is just a database, it's up to the routing services to decide how to use our data, I guess that Uber software is not yet able to avoid alleys and minor service roads, which is not a good thing (see this issue).
Could you please confirm that Gary Manuel Salon is still there? After a quick search it seems to me that the hairdresser moved away, am I wrong?
Thanks for pointing out this issue.
Cheers