Feedback from Landlords & Property Management

[Ayodeji Kuponiyi]

Fellow landlords and PM, how should I respond to this text message from my tenant? My tenant texted me this morning regarding renewing his lease which ends on October. He wants to revert back to $850/month (which is what he paid on his first year)  or pay $900 on a month-to-month lease. (He paid $900/month on his 2nd year but it went up $50 more when his mother moved in the middle of the lease term.) He feels that $950 is too much for place that is "not well insulated for the winter". *SIdenote He's been renting my unit since October 2013 and I updated the windows last year December* 

I checked rentometer.com again and the $950 I'm asking is reasonable for my area for a 2 bedroom unit. I'm willing to negotiate only because he pays his rent, doesn't complain much and keeps the unit clean. What should I do?