But while they differed on pros and cons of Noel Fielding and moaned about the absence of Mary Berry, there was one issue than united the majority.
Twitter was flooded with comments praising the show.
Ratings hit 13m when it moved to BBC One.
Robins Farm on Latham Road will give a slice of homemade cake to anyone who orders a main meal between 5pm and 7pm, just a few hours before the hugely-popular baking show premieres on Channel 4.
Following so many changes, hordes of fans, particularly the Berryites, are wondering whether they should stay loyal to the BBC as well and boycott the Channel 4 version.
Tuesday's opener got more viewers than any of the BBC Two launch episodes between 2010 and 13.
GBBO is said to have given C4 its highest audience since the Paralympic opening ceremony in 2012.
The controversial replacement of Sue Perkins and Mel Giedroyc with Sandi Toksvig and Noel Fielding has been a particular point of concern among fans.
The critical and social response to the new series, which largely has a new presenting team, has also been positive.
One viewer shared a photo of a crying woman and said: "Prue Leith: *breathes*". The only thing I miss is Mary Berry. And as for the Queen of Bake Off, Nadiya Hussain? The new Bake Off is actually brilliant!
"I had been looking at going on a course for a while at a patisserie college as it's something I love doing but I couldn't really afford it".
The lovely Val Stones from last series shared a post that was full of praise for Flo, aka the baker of the best illusion cake we've ever seen.