I use GPS to do survey work in the forest industy. I have the first model of Juno to come out, mine has a slower processor and no camera or cellular internet, compared to the new models.
The GPS sensor will hold it's lock better than a recon (had that too). But a $15000 dollar Lieca backpack unit is better. As is a GeoXT with the Hurricane antenna. The GPS data is more accurate than what you likely need, and you can post process the data, this will get you to 2-5m accuracy. That is the real accuracy, not the number that you get from a garmin or other non-professional unit. On a garmin the readout may say 6m accuracy but that is the radius of the circle, and is very optimistic. The juno will be 2-5m in diameter, or 1-2.5m radius 80% of the time.
I found the Recon to be lacking in the GPS department, it would not hold lock on to sats as well as my juno. When you go under a thick tree canopy the recon will not hold sats, where the Juno will. I tried the small bluetooth external antenna for both units, the internal in the Juno worked better. I have run a couple of small ballistic programs, they ran fine, with the gps running in the background.
The downside of the Juno is that it is not waterproof. Mine has taken a few beatings in the field and works fine, but it is not waterproof. Pelican does make a nice solid case for it. Also be carefull if you are using SD cards, if you vibrate the unit, or drop it onto hard objects a few times it will short out the SD card, and anything on the card will be lost. My Juno seems to have more than enough internal memory, and I have the older model.
If I was going to spend the cash on a Recon, I would look at a step up to the GeoXT/XM/XH series. Field armoured, stronger processor, more memory, better display, and a much better GPS unit built in.
Hope that helps
