The bag is a high quality dupe of the famous Celine nano crossbody, which costs around $2400.
For 10% of the price after discount (the original cost was around $650), I think it's a worthwhile purchase. The inside of the bag is unlined. The leather is of very high quality. The strap is not adjustable, but as you can see it fits petites like me very well. Not too long, not too short.