The fact that some here criticize the AIs themselves is not very intelligent, because Merlin only provides the wrapper for different AIs to choose from.
You can choose from all relevant AIs, even the newest ones!
And if they are cheap, you benefit just as much, as with DeepSeek (only 1 credit).
As this was a LifeTime promotion, the providers must of course also cover their own costs, so you should be fair in your assessment.
It is very positive that you can report suggestions for improvement and that someone from the Merlin team always responds. Exemplary!