We have been hitting the marketing hard, and we finally just broke $200MRR. This is a big milestone for us, because it put us in the black! We are spending about $100 a month in software fees, and another $100 on marketing. With the latest customer that signed up we are finally profitable.
Right now it seems slow going, but I have to remind myself that things take time! This is actually the fastest I've reached profitability. With my last two companies it took about 6 months to 1 year to be profitable. To reach the green in just one month is very exciting.
It's definitely true that building companies gets a lot easier after you have done it before.