Comfort and Fit: This pair is very comfortable in the sense that their presence in your ears won't be very noticeable. I fell asleep a few times while listening to music through these earphones, so thats all I can say about them. For fit however, I had to use the largest size of earbuds to fit it into my ears. Isolation isn't very good though because background noise can still be heard even when playing music. It may be due to the vented back of the Aurvanas
 
Sound Quality: These are my first BA based pair of earphones and I can say that I wasn't very impressed with them when I listened to music with them at the start. However, after listening to it for a few hours, I began to appreciate the details in the music and how well the aurvanas presented them to my ears. I can say that these earphones are more focused on mid but also have clear and detailed treble, but the mids tend to overshadow them occasionally. The bass is punchy and decent, but it definitely isn't suitable for bassheads. It is adequate in amount and depth though. Soundstage is a bit above average IMO, and the instrument seperation is quite obvious in the background. All in all, this pair of earphones are mid-centric in sound and have a warm and smooth sound signature.
 
On a side note, the accessories are very good and I really appreciate the hard case pouch included with the others like airplane adaptor, cleaning tool and 2 pairs of earbuds for each size available. 
 
Overall, I am very satisfied with these aurvana in ears 2 and even though they are a tad pricier for a single BA earphone, I think that these are well worth the price and can compete with better sounding earphones. 
 
So, I will definitely recommend these pair of earphones to those who are looking for single BA based IEMs!!!