I agree with everyone else-- I'd like to be able to access all the raw data, and export the data in different formats. This thing has great promise but isn't there yet.
I'd like to be able to set up different location profiles and link multiple readings to one location, and then compare and average readings from different dates for rainfall, sun, etc., and compare this to averages for my region. Without this i'm not sure how the sensor could give an accurate outdoor recommendation, unless I happened to put it out on an absolutely typical day.
And why does it have two different modes for monitor and recommend? it seems like it's collecting the same data on the front end-- I don't see why I can't choose one of those two modes after the fact.
I also think that the sensor would work better if it had wi-fi to transmit the readings back to my computer without having to bring it back inside. i know this would consume more battery power, but it would only have to do it once a day, and it could transmit a message to the computer if the battery was running low. if i could do that i would be tempted to by more than one to keep them in multiple locations.