The best way to get an honest testimonial (wherever you decide to live) is to speak to the present tenants.
I would openly invite any prospective tenant of any of our houses to take a second viewing before signing the contract.
We can ask the current tenants to conduct a second viewing where we will not attend, so you will be able to accertain if we are good honest landlords.
If you go for a second viewing ask the present tenants some pertinent questions such as:
Did the landlord attend to all the items that were promised - at the beginning of the contract?
How has the landlord treated them?
Were they happy with the cleanliness of the house when they moved in?
Is the landlord easy to contact?
Does the landlord attend to any problems that occur? - promptly and professionaly?
Do a Google search and you will find one or two independent landlord review websites where we get favourable independent reviews - or you could visit our Facebook page and read what our past tenants say https://www.facebook.com/studenthousesheffield/reviews/