This review won't be all that helpful since the pen was purchased many years ago and only available in China...I just need an excuse to post up the pretty color-matching glamour shots.
A little background of the brand: M & G is a brand founded in Shanghai in 1997, the company was somehow related to the Korean brand Morning Glory (either as a subsidiary or a sister-company) but now it is just going on as its own. The brands makes stationery with cute cartoon figures (I remember there is Miffy the bunny and that blue bear I don't know the name of) and is generally quite affordable, thus popular among school kids.
The little ballpoint pen has a glittery plastic body and a chubby heart clicker. The pen is around the same weight as a Pilot G2 but it's larger in size so I feel it's a little too light for me. It doesn't have a cushioned grip but at least the ribbing makes it easier to hold.
The pen takes a generic refill (I have a feeling that most finer ballpoint pens in China are like this) that lays down a very smooth, line that's similar to what you get with a 0.38mm gel pen (since the ink is more viscous and doesn't spread out as much). It's generally very smooth for a ball-point (not like Bic at all).