I think this is the essence of the much-bandied "do things that don't scale" advice. Scaling inherently involves abstraction and generalisation, engaging with individual human beings can generate much clearer insights until it becomes impractical (scale being a forced issue).
So much this! I'm one of the people that appreciates seeing "behind" the product very much :)
If you feel that a real human person is behind all that, and not a faceless company, you're also much more likely to share feedback. (Nobody would share improvement ideas for Windows with Microsoft, since you can be sure that those go straigth to /dev/null (or, more appropriately, the recycle bin).)
Customers really appreciate it. I guess its not for everyone, and it's not infinitely scaleable but it is highly valuable in the early stages.