I liked it, but it was certainly not spectacular like Shakespeare's big plays. The plot has more issues than most of his other plays; what is really most interesting about it is how problematic it is. Still, the plot, though not original, brings up a great deal of questions that are still relevant today, and the characters (namely Isabella) are pretty good for how short this is. Three stars simply because I really dislike how he ended up throwing everything together at the end, but the themes are nice.
Out of the Silent Planet kicks off the Space Trilogy perfectly; the end is succint but Lewis opens the world up enough that the transition to the next book, Perelandra, is delightfully smooth. While all of Lewis' works are known to an extent, The Space Trilogy largely suffers in the shadow of The Chronicles of Narnia.
But its better, even though they are different.
Out of the Silent Planet prompts thought and explores life in a new world the way that Narnia never did. It is explicit and deep where Narnia only skips along the surface. Even so, Lewis retains–even multiplies–the beauty and wonder of Narnia throughout this first book. Every page is entirely worth the time it takes to read, and the experience of Out of the Silent Planet is sweet to remember.