I spent the evening 'breaking in' the device. My initial thoughts are 'disappointing'.
I spent the entire day at work doing empty 'burn offs', looking forward to the glorious clean fresh taste of an all-glass pathway when I got home that all the reviews bang on about, and all I could taste was rubber!
The all glass pathway isn't strictly true, because it's not as though the two glass pieces fit together air-tight! There is air being added to the draw through the sides via the gap in the glass and the middle body of the device where the glassware fits is made of rubber!
I'm hoping that this will subside over time, as it did taste a little better this morning, after an evening of heavy use, but I am getting the feeling that any review on the net that shows a brand new vape being unboxed, filled with dry herb, and immediately used with no prior 'burn off' or 'breaking in' and then bangs on about how amazing the device tastes, either has no sense of taste / smell or is a complete liar.
Putting this aside, I do like the device, I just wasn't expecting my Titan to currently taste better, but as that took a week to 'break-in', I'm going to give the Da Vinci a fair crack of the whip, before making final judgement.
I'm certainly enjoying cooler vapour from the Ascent plus faster heat times and the battery has a decent session length.
I like the 3 stage session programming you can set, so it increases temps over time through the session.
I had hoped to use the jars for solid (crumbled), but the jars are quite thick so can't hold much, though it does work.
You need to ensure you pack dry herb fairly well, otherwise loose grain enters your mouth through the glass stem, making you spit granules of grittiness as you vape, a bit unpleasant and uncouth.
I'm also surprised there isn't a cleaning brush provided with the accessories, something all the cheap Chinese vapes and even the G-Pen comes with.
I can also confirm what others say about escaping vapour through the bottom of the device, so even though there is a rubber stopper for the mouth piece, because the oven is exposed at the bottom, it still leaks aroma into the surrounding area.
I had read that the screens provided were to help with the granules entering the mouthpiece, but as the oven shape is oval and the screens are round, I'm a little confused how they are meant to fit?
I've used one in the bottom of the oven to stop the herb falling though as the holes in the bottom of the oven aren't exactly small, and it seems to be working well, so perhaps that is what they are for?
I've ordered a bubbler to accompany the U-Tool which should be here sometime this week, so I have more playing with the device, before any final conclusions can be made.
If that rubber taste goes away, I'll be a happy customer...fingers crossed eh!
Are you some kind of masochist or you just like to gamble with your own health? 
