We have a Raymarine C80 on Constant Craving, and I am satisfied with it, but I would seriously consider going to a Furuno if I needed to replace the unit. One reason is the close proximity of the headquarters (Camas, WA) for repair/consulting.
When my GPS puck died (my fault due to over torquing the screws, breaking the plastic and allowing moisture intrusion), my local dealer, Rodgers' Marine Electronics was extremely helpful in the trouble shooting for no fee. I highly recommend that you consider buying through someone like Rodgers' rather than a West Marine or internet supplier.
Another thought... If you are going to get a radar arch, order the boat with the arch. I put mine on as an after thought, and although it is not in the least bit difficult, I found that I didn't like drilling holes in my boat. I get nervous twitch every time I do.
Steve