I bought a 2002 330 in 2011 & it had 2002 vintage Furuno electronics. I slowly started to upgrade with a Garmin 5212. I now have all Garmin - two 5212, 24" radome HD radar, B164 (?) transducer, 2 fuel computers (don't remember the model) and Sirius weather. The only component I didn't replace is the Simrad AP-11 autopilot. I will when it stops working until then it remains.
The 5212's are considered old and slow but I am ok with waiting a few seconds for the screen to refresh. I am completely happy with the Garmin network and their customer support has been very good