I dont know if this applies but there 7 in the series and I really enjoyed the first 3 the first being my favorite book. I bought my mate the first who a fan of Iain M Banks and ended up having to get him the whole saga.
Have you read all of the Commonwealth Saga? There is the original two then the Void Trilogy and a further two recent ones. His Night's Dawn Trilogy is very good and I also think that the Great North Road is a good standalone book.
I read the first 3 in this series after I read the 3rd there was no more out and took to be the last the first 2 are very good but found the 3rd harder going its like navel officer but taking place in space. Seafort Saga - Wikipedia
I've listened to the unadbridged versions of the Red Siging series by Pierce Brown. Thought they were excellent. Naturally the books should be just as good!
Books 1-3 are already published, with book 4 out in January. Thoroughly recommend them.
Ian McDonald's Luna series (starting with Luna: New Moon) is very vividly realised. Really carries a sense of what it might be like to live on the moon in the future.
Has a strong mix of characters, too. Great world-building action.