After being recommended "The Space Machine," I bought this omnibus out of necessity. I had no interest in reading "A Dream of Wessex."
I plunged into "The Space Machine" with great anticipation and with "War of the Worlds" fresh in my mind, but it wasn't long before I started to tire of the characters. The characterisation felt forced, as though the dialogue was written with only the time period in mind, not the characters' personalities. The plot itself was interesting, but came nowhere near "War of the Worlds" in quality, and occasionally it felt as though the story wasn't sure whether it wanted to be a tribute or an AU fanfic. Basically, it just started to feel like slightly sub-par fanfiction to me. Maybe I'm missing something.
But I decided to give "A Dream of Wessex" a go regardless, and I am so glad I did; I was hooked from the first page. The plot was really intriguing, and the characters were well thought-out. I think having the story set in a time that mirrored when it was written meant that the focus was purely on personality, rather than over-thinking how people would have behaved a hundred years ago. The story itself was compelling, and I felt genuinely attached to the characters by the end.
So basically, I give four stars for "A Dream of Wessex" alone. I'd probably give "The Space Machine" two?