I am doing a quest line in hope of obtaining a nice unique weapon.
The nightingale bow from the thief guild quest line
This is an awesome piece of equipment for my type of character and kind of want to use it indefinitely. My worry is that I am only level 26 and the item will become useless later on in the game. I believe unique item's stats vary depending on character level, which leads me into thinking that I should probably wait until I am a higher level to pick it up. I won't be using smithing of any type to be able to upgrade it.
Is there any way I can make the item viable at later levels or should I just wait till my character is stronger to pick it up?