How painful is finding good tenants, and leasing model feedback?

[Yifan Zhang]

Hi Seattle landlords!  I'm new to the area - just bought our first property after moving to be near my fiancee's family here.

I'm considering a new business model that pares down full-service property management into just the leasing portion.  For a low monthly fee (i.e. 3%, which could be built into rent), landlords get top-notch tenants (high credit scores, verified high income and great rental history) screened and placed into your property, and monthly electronic transfers of rent from tenant to your bank account.

I'm curious whether finding good tenants is painful in Seattle, whether you pay for a leasing agent right now, and whether this service seems like a good deal to you?