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First I was going to say--no, way, don't waste the money, the water piece looks subpar, jump right in on a decent China clone piece for half this $79 price.
THEN, I see that it comes with 2 of their whips---which happen to be a very sweet pieces and which happen to be way overpriced IMO from MFLB ($30 for one).
So, if you go into it that you're getting a smokin deal on two great whips AND a potentially poor water piece --you're good.
Plus, this water piece COULD be a sweet surprise. It's a very minimal size piece but the miniVAP vapor is so great, you don't need much conditioning. that minimal diffusion might yield a great taste with just gettin a little moisture to it.
Still say the other option is get an el cheapo Chinese small bubbler if you don't go with the MFLB combo.
P.S. With your new mV, you might want to hit it straight with no water to get the max taste and it delivers there. I even use the short 2" hard mouthpiece a lot. I think I have a sensitive mouth/throat/lungs but I will use this all the way up to red. Even there, with good quality bud, it is not harsh at all. It is #1 DRY and a distant #2 VERY WARM. Still VERY tolerable to me!!
So, thru my bubbler on red--I like that more, vapor is MOISTURIZED and yummy
As you add mouthpiece length and then water, each has the flavor go down ever so slightly. More area to condense vapor out = less getting to you.
EXPERIMENT with all the possibilities....your mV will guide you to it's peak performance for you