Hi rokey_4u,
There are some Pros and Cons to select the PC.
Assembled PC
Pros:
You can customize the system and get, the more powerful configuration in the same price and the most importantly, it's a future proof rig and easy to upgrade.
Cons:
For warranty claim, you have to go for different customer service based on the assemble hardware.
Branded PC
Pros:
For warranty claim, you have to just contact with the service provided company.
Cons:
Not easy to upgrade and limited support for different softwares.