G250 v H4000
Heres some information to consider both good aircraft.
H4000 over 10 years late so some of the technical upgrades are 10 years old, it was a clean sheet aircraft but development problems extended it to 10 years this was the worst entry in to service ever.
5 year warranty does not cover the interior this will be 2 year max.
On the Good points it looks like a fantastic machine not sure on the fuel-burn climb aspects etc.
G250.
Clean sheet design EIS was quick will have its issues, world class product support backed by GDAS will solve any issues, Gulfstream is committed to make the G250 work as the next aircraft a purchaser may evolve to the next flag ship a G450.
The G100-G150 and G250 will never be a Gulfstream in some purists eyes as it was not built by Gulfstream in Savannah and is not powered by Rolls-Royce engines.
However the G250 will evolve in a fantastic product all outfitting done in Dallas TX so the client would never know if it was indeed built near the Gazza strip.