One drawback of the Maestro products is the technical support as the manual is incomplete and emailing Larry
for help is time consuming as it takes one day to get a question answered, so it is probably one of those you gets what you pays for. One example of the technical support I got was when I asked about the PPS signal Larry told me they did not recommend the PPS for timing. I got concerned about the PPS signal after hearing their recommendation, so I emailed him and asked what the problem was, he told me the signals were only accurate to 330 nanoseconds in the worst case. Maestro's timing errors on the PPS signals is on par with everyone else. My timing requirements are on the order on milliseconds so the standard PPS errors are fine for my app.
I recently ordered a couple of the newer models the 2035 http://www.mouser.com/ProductDetail/Maestro-Wireless-Solutions/A2035-H/?qs=sGAEpiMZZMsjLMBIknjmkuVhKqprv9GpN3Jf4M%2fyBeA%3d
as it is a little more sensitive, will track more sats, and is about $2 cheaper. The soldering pads footprint of the 2035 are the same as the 1035 so the breakout card will only need minor tweaks.
Long story short: I would buy one of the better known GPS modules if I was only going to use one or two, as the learning curve does not make it worth it for the Maestro. As stated earlier I wian yo using many of them so it makes sense for me.