From what I understand, the radar has had some problems, but these have been pretty much fixed. Part of the problem was to do with heat, especially in
the higher power modes (Electronic Attack modes in particular caused problems).
As for the fifth generation fighter claim, well it's pretty much bollocks if you ask me. Sure, the radar, at this moment in time, is one of the
better ones around, but as the counterpoint says, fifth gen is the fusion of a number of capabilities. Once the F-22's air to ground radar program is
finished, it will assume the mantle as top all round dog (and considering it has already tested SDB it is arguably already superior to the Super
Hornet in all respects). The Super Hornet doesn't have the penetration capability of a B-2. It isn't as good in a turning fight as a Classic Hornet
(not that I think this is a big deal). The Super Hornet has good SA, but it won't be anywhere near as good as the F-35. The EA capes are nice, but
unless you buy an EA-18, it isn't a force level capability. So, in short, it is all marketing spin by a company that is aggressively trying to sell
its platform. And for anyone not getting a 22 or 35, it is a reasonable option.
To put it another way, you can put a 2.4L V8 engine in a Mini and wear a helmet, but that doesn't make it a Formula 1 car...