Don't kid yourself - this was easy for Arsenal against a Watford side needing a miracle to stay up.
Not only does the scoreline flatter Roy Hodgson’s men, it doesn’t do justice to the superiority of Mikel Arteta’s side.
And in the game of footballing Snakes And Ladders that is the race for next season’s Champions League, Arsenal now sit fourth and remain now masters of their own destiny.
Stay this sharp and ruthless in front of goal and the momentum building behind their four-match winning streak will be hard for any of their rivals to match.
Manchester United are too inconsistent, West Ham ’s squad is too thin and Tottenham simply cannot defend.
This is Arsenal’s top four place for the taking.
They do need to tighten up defensively and you can understand why Arteta was in no mood to get carried away in the post-match press conference.
Leicester and most definitely Liverpool will provide searching tests in their next couple of home games.
But Arsenal will never get a better chance to make it back to the top table of Champions League football they last dined at five years ago this week.
Whether they make it or not, Bukayo Saka must surely lay claim to Young Player of the Year.
He is a man who makes things happen. Take the 20-year-old out of this Arsenal team and they lose a massive amount of their X-factor.
It was Saka, in fact, who provided the foundations for this victory. Watford simply couldn’t cope with him.
When Martin Odegaard received the ball on the right after just five minutes, he exchanged passes with Saka who released him in the box.
Not one of the four Watford players in front of Odegaard was able to prevent the former Real Madrid star picking his spot.
To be fair to Watford, their equaliser was outstanding. A candidate for Goal of the Season.
Kiko Femenia crossed from the right and Cucho Hernandez left Ramsdale rooted to the spot with a terrific overhead kick.
At this point, despite the positions of the two teams pre-match - Arsenal were sixth, Watford 19th - there was no telling which way this was heading.
It was Saka who would turn proceedings back in Arsenal’s favour on the half-hour. He caught Watford’s Tom Cleverley in possession and played the ball to the excellent Alexandre Lacazette.
The Frenchman back-heeled it to Saka and the England man lashed it home.
From a Cedric throw-in shortly after the break, Odegaard played in Lacazette and from his lay-off, Gabriel Martinelli cracked a superb third.
It was a lead fully merited. Watford will go down because they simply can't smell danger.
Arsenal were full value. So much so that Eddie Nketiah, on for Lacazette, hit the post within minutes.
But then Moussa Sissoko was allowed to beat Ben White and slide the ball under Ramsdale for 2-3 and a nervy finish. It should never have been that way. Arteta will work to tighten that up.