Hi Carly!
I've used rent to retirement (@Zach Lemaster and Scott Lundgren) since July and have nothing but good things to say about them. They are extremely helpful in finding properties that are cash flowing! Their cashflow estimates are fairly accurate, but I would advise a higher % (10% combined...5% each) toward vacancy and maintenance to lower your expectations (they typically exceed these estimates, but it's always better to err on the side of caution here). As far as trustworthiness, I trust this company and stand by them 100%! I'm on my 9th closing with them and have been very happy with their offerings as well as the property management companies.
I've had one issue getting a renter for one of my properties, but that's more on the PM team than rent to retirement. The PM team is trying to get $1200 for a property that I had anticipated $1000 for and have actually had showings at the $1200 mark. The companies that they set you up with are also really trustworthy and have great reviews from other investors!
Again, I'm still fairly new to this, but for the first 4-5 months, I've had little to no issues and have achieved about the same cash flow that I anticipated varying from -10% to +20%, but again that part is on the PM company and not on rent to retirement.
Feel free to message me if you have any other questions! Always open to chat about real estate goals!