Is this a quadruple acrostic?

Question: Is this a quadruple acrostic!?

Great quadruples do tell
Readable, understandable,elaborate humour!.
Educational,admirable,fanciful,essays
Adept,decrepitating,intelligent, brainy,
Taxing,relaxing,nonsense,excruciating,
Demanding,Unpredictable,impossible,set!.!.!.
Oral,painful,tiring,tense
Never-endinging,lethal,eager enthusiasum
Destructful,exasperating,luring,satani!.!.!.
I salute you,Sir!.Www@QuestionHome@Com

Best Answer - Chosen by Asker:

Great Dondi quadruples, definitely the bestess!.
This was the bestessWww@QuestionHome@Com

Uh, I got two!.!.!.!.unsure about the final 2!.!.!.!.the last is 'the best'!.!.!.am I correct!?Www@QuestionHome@Com