I used Stanley Samuels for property management for a few years. It was reasonably priced according to the market - around the 8% mark.

I used them to obtain and manage tenants. When first renting out my property they gave me an estimate of what I could charge; I asked them to list it for $30 a week more than what they'd recommended and they grudgingly did so, telling me a cautionary tale of landlords reigning over empty houses when they name pie-in-the-sky weekly rents. We had plenty of applicants and it was tenanted within the week...

I had an issue with a particular property manager as well; turns out the tenant had moved on and sublet the house without the property manager knowing and the rent wasn't being paid. The new tenants weren't discovered until I visited the house with the property manager in tow; we signed up the new tenants but I still had to pay for a residential tenancies hearing that wasn't needed in the end as the former tenant was gone. I believe that property manager no longer works there.

On the good side, they are quite responsive and happy to assist with quotations/providing keys etc.

OK company to deal with, just make sure you keep on top of rent payments/inspections being done on time and thoroughly etc. Maybe do a ride along inspection once a year just to keep an eye on things.