I'm running a G710+ at home for five years at least (I bought when it was just discontinued for a steep discount), and written my Ph.D. on that, incl. the code and the manuscript, I can say that they're not bad.
Nothing is broken, no led is burnt off or no key has faded.
Being said that the G710+ uses CherryMX Browns which do not tend to die that easily.
I also have the 710 but with blue switches. My volume scroll wheel died in a year or two but it's also 8 years old now and apart from the volume wheel, it works just as well as the day I bought it. I just clean it twice a year.
Sturdy as heck for a keyboard that cost me 60 euros and I've used thousands of hours.
Nothing is broken, no led is burnt off or no key has faded.
Being said that the G710+ uses CherryMX Browns which do not tend to die that easily.