i love my vevor electric aio. 35 l
its the same as the klarstein right down to the model number. dm-n 30
it no doubt is the same as the klarstein.
i was seriously looking into that model when i had some extra money in my pocket . i was considering to get the cooling coil for it also. the problem ihave with conicals is the pain in cleaning them as compared to PET.
i have since swithced over to pressure fermenting at ambient temps so coil not needed and conical not needed.
if you do descide to go with vevor dont sweat it. i have great success with mine. be forewarned however there is a thread online about a vevor still that exploded so theres that.