Hello I have bought poco f1 about 2 years ago. Till today I have no issues with this phone.
Pros:
High speed processor. No lagging
No heating issues at all
Type c charging port with fast charger.
Good display quality and screen aspect ratio
3.5 mm headphone jack
Good gaming experience
Camera quality is quite good.
Brightness also well enough in sunlight
Cons:
Buit quality is not so good. It looks like cheap plastic built mobile phone
Speaker quality is not satisfactory. You may experience low sound quality.
Does not support dual sim cards and memory card together.
Front camera is average.