The Villa Park experience - of which he was part for seven minutes at the weekend - was only the fourth league match without defeat he has witnessed since coming over form Bryne for £800,000 this winter.
Of course, he has also witnessed the famous FA cup victories over Sunderland and Manchester United as well, but he reckons the first goal at Villa Park has really shown him the sublime football of which West Ham are capable.
It was that reputation that made him say 'yes' to the Hammers once he veered from his first choice destination of Italy, and he says:
"I didn't actually know how good they could play but they did really play good football especially with the first goal that we scored.
"I wouldn't compare that with many teams in the world that does that - quick passing and suddenly the ball was in the net.
"We could have killed the game when Paolo di Canio missed but that's the kind of thing that happens in football.
"We fought hard against Manchester United but we didn't play that well.
"At Villa we fought AND played good football, and it might have been one of the best games that we have played."
He was able to celebrate a point on the pitch for the first time too - his previous involvement for West Ham being a starting place in the defeats by Chelsea and Arsenal, and a substitute appearance at Liverpool.
All of those games ended in defeat with West Ham failing to score, so being able to enjoy leaving the field having picked up a premiership point was a new experience for him.
Though he did also get a little run out against Manchester United in the cup that he was able to enjoy at the end!
"I think it was 5 minutes against Villa, but I was actually glad just to get a chance to be in the team.
"We made a good performance but we were a little bit unlucky; we didn't kill the game when we were leading the first time.
"Then they got two goals against in quick succession, and it looked like we were beaten but we stood up and fought our way back into the game.
"And we got the goal we deserved, so it's at least one point - but we should have got three.
"We are not pleased with the way that we concede goals..."
With defenders either suspended [Stuart Pearce], on international duty [Hayden Foxe, Rigobert Song after the Derby game], or injured [Ian Pearce, Christian Dailly], does he feel he will get another chance to start soon?
"I can't rush anything," he says.
"I just have to try to be patient, but you always hope to be part of the team.
"But my time will come hopefully and there's no rush - the manager picks the team.
"If I'm in I'll be very glad but if I'm not I've got to be on my toes and take the chance if I get it.
"And I'm starting to enjoy England - but not the weather!"
The club, incidentally, are trying to get dispensation for Rigo to leave for Cameroon duty after the Newcastle game rather than him having to travel between the two easter matches.
Meanwhile, Davor Suker, who Harry said last week he would not be retaining after this summer, has been quoted in El Mundo as saying he will play on for just one more year.
"After 17 years my professional career is close to ending," he has said.
"I'll give it one more year. I can't manage it any more at my age: so much travelling, so much stress, so many victories and so many defeats.
"You get tired and next season I won't continue in England.
"For the first time in my life I've spent several months out injured and I haven't found a place in the team.
"It also seems that when I do recover the coach Harry Redknapp won't be counting on me.
"I have offers, as always, from Spain, France, Germany, Japan and Mexico, as well as from Dinamo Zagreb.
"The important thing for me now is not money; I want to speak other languages, get to know other parts of the world and be rich in experiences."
He is also quoted talking about a recent story suggesting he faced jail for not doing his military service in Croatia, saying:
"The Croatian government decided that the best thing would be to relieve some important players, who could give the country publicity, of their obligation to do military service.
"Before the World Cup no one, about five percent, knew who Croatia were - now 40 percent of the planet know where we are.
"Now the government wants some of us to return to join the army but this is something that's about to be resolved."