It depends where you are in the game. If you're already uncollected then I'd say no, mainly because T4CC's and T4B's are easily accessible now while the shards are below average for that much units. I'd use that 1000 units on clearing content.
I thought it was fair. As someone who has better things to do with my time than to bore myself to death in arenas grinding for resources, it was worth it.
Comments
Unsure if it is "worthy" but I set myself a target of 250 units for a T4BC / T4CC.
I bought it and obtain a bonus of awakening 4-Star 👻 Rider and can now take him to rank 5.
5* shards value a full 5* at 4k but two full 4* is normally around 4k and I get them too.