I stayed at Betty's place for 3 nights. I stayed at both rooms (the one near the kitchen and the one that have a balcony). Both are nice, but I prefer the one with the balcony simply because it is bigger and I can sleep better (don't know why).
The location is perfect with reasonable price. It is near Newton MRT station and Bus Station. You have to take a walk and crossing the street.
I didn't get a chance to have a long chat with Betty. But I did meet her and she seems nice. She was communicative prior to my arrival. She contacted me through e-mail and update me that she wouldn't be able to meet me on my first day. However, the check in was smooth as the instruction was so clear.

As a matter of fact, I will be staying at her place again on my upcoming visit to Singapore :)