Hmm I liked the Pokemon they offered honestly! They were unique, rare Pokemon that you couldn't normally find in the wild and I think they were fair trades. It wasn't too much of a hassle to get the Pokemon they wanted except for Rotom with Ditto which was worth it in the end! The only problem I would have with them is I didn't really like the nicknames they were provided with.
I honestly didn't use the Pokemon since at the time I had a planned team already and I didn't really have much use for them. However I liked the in-game trade Pokemon in Gen 5 :3!