The Fourte is absolutely brilliant, with a level of detail that leaves most TOTL IEM's in the dust, to me. I was amazed by the detail representation, and the bass presentation. I love the u18T and the bass and would purchase it over the Fourte, but the Fourte reaches deeper, and with a bit more oomph besides the detail. It is worthy of TOTL status without question, and would withhold judgement in comparing to the Andro. It is good, but that would be like comparing a tricked out Mustang to a Lamborghini...Both are good, and I like both very much, but...