The F22 requires 100 hours per hour of flight in maintenance, similar to a degree to the AH-64 Apache - another aircraft hopelessly unsuited to intensive battlefield duties beyond having one or two available at any one time in Afghanistan.
The best the F22 can do is turn up at "Red Flag" exercises.
No doubt though, the stealth paint does work on an F22. The snag is dogfights can and do occur. Beyond Visual Range engagements are okay in theory, but the fear of shooting your own down, or an airliner packed full of passengers is such that pilots still like to see what they are shooting at.
And if an F22 is seen by a Eurofighter/EF2000, then it is stuffed. Actually if an F22 is seen by an F16/F15 or Gripen/Rafael/J-10 (that's a US/IAF 'Lavi' in Chinese markings) then it is stuffed; the Raptor depends utterly on not being visually spotted, and in any case the infra-red pod mounted on later Tranche Eurofighters (just in front and to one side of the cockpit) ensures that a Eurofighter can hunt for Raptors with its radar turned off, and anything that broadcasts radar over a modern future battlefield (such as the Taiwan Straits) is dead.
I'm not entirely sure how the F22 fits in with modern aerial warfare; it can hardly carry any load, not being fitted with non-radar absorbing external strongpoints, it doesn't have vectored thrust (like a modern MIG such as those flown by India) it can't do the "swing-role" for air defence and ground attack like a Eurofighter or F16 can do, and worst, it can't fly more than one sortie a day without skipping maintenance.
The USAF will get just 137 of them, the Air National Guard none, and the USAF is retiring over 200 F15 & F16's in the near future due to them reaching their airframe limits.
The USAF desperately needs a proper, easy-to-produce single-seat fighter; something like a modern Mustang, with a good radius, ease of maintenance and no reliance on onboard radar. At present even the North Koreans will overwealm the USAF Pacific forces with just sheer wight of numbers, even if the kill ratio is 10:1.