Northstar
I have a Northstar 6000i chartplotter/gps/Radar unit. Its a great unit. The 6100i is the newer version of this one, but both are very similar, only issue I have had with mine in 4 years of hard use is I lost the use of the number 1,4,7 on the keypad. Going to replace it this winter, actually just put boat up for winter this past weekend to be honest with. Keypad change is couple of screws and ribbon cable no real issue....I really like Northstar way of doing the overlays for radar right on the chart, makes things clear and easy to read. I have the 24" radar dome also hooked into it, I do have the transducer, just never added it as I use an older Raymarine for backup gps and fishfinder. Overall, in the past 4 years, I've had the Raymarine unit worked on or bumped code levels 3 times while the Northstar just keeps on going...minus the keypad issue I just noticed. If I was to buy again.....I'd buy the Northstar over raymarine...I know raymarine has strong following on this website and its only my opinion...but I would put the extra dollars into another Northstar unit without any questions asked. if you have any more questions on the unit let me know...