Highly recommend
I was an MB-PhD candidate at the University of Manchester. I was with Sam Properties for 1 year, and my time with them was nothing short of utmost professionalism and probity (a rare sight among the letting agencies I consulted when searching for properties). The prices they charged were reasonable, and their maintenance team (especially Man Wai) responded to any repairs extremely quickly (1-2 working days). They are reasonable to the tenant's requests, concerns, and explanations. If you didn't break anything and you're honest in your explanation, they won't blame you and will fix it free of charge. Just make sure you do your bit as a tenant and document any evidence you can.
If you missed a few spots as you return your room/flat to them, they will let you know during the final inspection and let you clean it on the spot. Their staff (Cherie?) even helped me clean a few bits. No deposit was taken from me in the end. Just genuine people doing genuine business.
Although not directly related to Sam Properties, the landlord generously offered an early-bird discount for renewal, which my flatmate took up.
It is unfortunate that Sam Properties has such a low overall review across several platforms. Whilst I don't think most people would take the time to write a false review, the legitimacy of a few recent reviews does sound questionable. I certainly can't comment on Sam Properties' conduct before my stay, but I can say their current conduct is exceptional, and I hope they continue this practice for my former flatmate, my friend who took over my tenancy, and other tenants.
All the best.