I have just unlocked OTTO ... yay .... i think ... altho I cant see any use for it

should i place the master builders hut in my war bases? I am almost max th12 (just walls to upgrade)

Arguments

FOR
extra 250 hitpoints, so may make 3 stars less likely (5% of wars)

but

AGAINST
very easy target so may give away extra % on 2 star attacks (95% of wars)

Secondary questions
does anyone remove builders huts from war bases?
and do you think this improves % outcomes in 2 star defences?