It may be worth having one in the boot in case an emergency repair is needed short term.
The old Poundland wiper blades that used plastic frames were terrible. Hopefully these are significantly better. Some of the worst blades I've purchased in recent years were the Michelin brand sold by Aldi.
The problem with some of the cheaper ones is that the fixings and clips are sometimes no good and it’s quite dangerous if the wiper blade becomes dislodged whilst in use also potentially causing damage to your windscreen.
All that good advice yet still people vote hot! (confused)
One purchase that definitely comes under the buy cheap buy twice . Stick with Bosch, vaelo, champion and will last . You can clean the rubber with vinegar every now and then to remove grease + grime. These will split in no time.