The Spaniard joined the Gunners in the summer of 2018, becoming the first manager to succeed the legendary Arsene Wenger.
He did so by convincing the board that he can take the club to the next level, but it never truly worked out for Emery.
In his second season, the campaign never took off and was plagued by problems on and off the pitch.
Emery was eventually sacked in November 2019, shortly after losing to Eintracht Frankfurt in the Europa League.
Since then, Mikel Arteta has been appointed Gunners boss while he has signed for Villarreal in La Liga.
And Emery has opened up over his time at the Emirates, going into detail about life behind the scenes.
He told Football London: “The club supported me and I was happy with the players, the atmosphere and the supporters.
“Only the second six months of the second year when I finished in November I think we made some decisions not good for the club, but not for me, the decisions of the club.”
One decision that has stuck out was the signing of Nicolas Pepe over Wilfried Zaha – a player who Emery was desperate to sign.
The forward was brought in from Lille for a club-record £72m fee but has failed to hit the heights expected while Emery has insisted his time at Arsenal was a positive one.
He added: “For me it’s not negative, it was a positive experience and after I left the club the first month was not easy for me because I was running out of things [to do] but now I am very grateful to the owners, the club, the supporters, the players, the workers in Colney.
“I now only remember the very good things there and the first year for me was a very good performance for us.
“I worked well with Mr Kroenke, Raul [Sanllehi], [Ivan] Gazidis during the first months there.
“The results towards the end were the main problem but for me it was a positive experience and I’m grateful to Arsenal for the opportunity.
“This is football. Now I want the best for Arsenal and Mikel Arteta, the supporters and everyone at the club.”
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“The problem in Arsenal the second year was only the results, not the language.
“I could speak English and communicate in my press conferences, with the players.
“The message was not perfect but it was good and little by little I was progressing. If I continued at Arsenal I would have got better, of course.”