Before this degenerates into an "Yes it is, No it isn't" situation,
let me offer something of a guide to the visibility of comet-like
objects in the daytime, based on about half a dozen years of
experimention on my part (and the basis for my near-sun article that
appeared in the ICQ many years ago).

At magnitude -1.5 : When the precise position is known, objects of
this brightness are just visible with 80mm aperture, even within 5
degrees of the Sun. They can be more easily detected with telescopes
but are not "obvious".

At magnitude -2.0 : Visible with larger, mounted binoculars, while
easy with a modest telescope, even within 5 degrees of the Sun.

At magnitude -2.5 : Easily seen in ordinary binoculars if mounted.
Dramatically obvious with a modest telescope. Likely to show hints of
the tail.

At magnitude -3.0 : With ordinary binoculars, amazingly bright and
almost equally as well seen as Venus in the daytime. Can simply be
swept up with handheld 50mm binoculars and will likely show a short
or rudimentary tail (Comet West in '76). Also can be detected with
the unaided eye shortly before sunset (at the same time being very
obvious in binoculars, complete with tail). Modest telescopes show
considerable structure and significant tail with the Sun well above
the horizon.

At magnitude -4.0 : With careful attention, visible with the unaided
eye throughout the day if more than 5 degrees from the Sun.
Telescopes shows an almost uncomfortable degree of brightness (like
that of Venus) to the nuclear region. The comet is visible in
ordinary binoculars virtually right up to the Sun's limb.

To me, the descriptions reported so far seem to equate to what I've
personally seen with regard to objects of around -2.0 . Most
unfortunately, it is cloudy at my location and I am unable to attempt
any confirmatory observations myself.

JBortle