Just putting this out there but I didn't want to give a bad review on this product since I was kind of excited to get it and wanted to try the auto batt and cartos. I even waited for a few days to buy the echo since it was sold out for a little bit.
Anyways, I did a fair amount of research and all the threads concerning this pv (including this one) before I bought a kit but I gotta say. My opinion on the echo is that I'm pretty darn disappointed. I mean it worked pretty good for me in the beginning. I got pretty good flavor and a fair amount of vapor but there's literally no TH for me compared to my other pv's. The truth of the matter is that I like my ego-t type b and Reo grand a WHOLE LOT more and felt like I wasted my money on this pv. Also, the sound it makes when I'm taking a drag is just plain annoying. In addition, the drag is way to airy for me since I'm used to my type b that has a tighter draw.
Comparing the echo with my type b, I DEFINITELY get more vapor, and TH. The taste will be about the same. Honestly, cartomizers are not my thing since it's easier for me just to pop the top off of my tank and fill it up and I get a better drag off of it overall. Don't have to wait for the juice to seep into the material in the carto. Also, the time that it takes to charge a battery is RIDICULOUS. I put a fresh batt right out of the box onto the USB charger on my computer for a little over 5 hours and it wasn't even fully charged!
Got irritated to the point where I simply just put it back into the box. Might try it out in a month or so but I'm probably just going to give it away to a friend to get started on vaping. I really had high hopes for the echo being that it sounded like something I was looking for since it had a auto batt but to each their own. Some might like it but it definitely didn't do it for me.
Just ordered a Reo mini and waiting patiently for it's arrival.