There will always be a balance between price, quality, features, and safety. You can't get all at the same time so you must decide which matters more. You also need to look at features that might not be anything other than eye candy or features just to make the feature list longer, useful or not.
Many people will say that they aren't going to test 5000V and so they don't need a safe meter to just test things in the house and electrical wiring and power on the house. We see this argument so many times here. Please do some research on what the CAT ratings really mean and how they apply to you rather than dismissing them as nothing to worry about.
Look at the history of the manufacturer and decide if they have tried to imply or even lie about their ratings and certifications. If it has happened many times, why would they not do it again? If a manufacturer has lied about safety ratings, what about their accuracy specifications?
Build quality is a feature and should be directly compared to other features you might want. USB connectivity included in a meter is a good feature but what if you prefer a meter that will last longer without the USB connection?
Not many people have used Conrad meters compared to Brymen meters. The amount of complaints about either meter are going to be biased by the amount actually used.
Brymen has a long and respected reputation as an OEM for Amprobe, Greenlee, Extech, some others, and as Brymen themselves.
Conrad meters (made by Uni-T) have hardly any reputation. Uni-T meters do have a long and varied history of really bad meters to somewhat good.
Decide which matters to you most and get what is better for your needs but don't discount safety and build quality as being unimportant until you understand the application of the safety standards compared to your intended uses.