The phrase "a complex and interesting" is correct and usable in written English.
It can be used to describe something that has multiple layers or facets and captures attention or curiosity.
Example: "The novel presents a complex and interesting narrative that keeps readers engaged from start to finish."
Alternatives: "a multifaceted and engaging" or "a complicated and captivating".
If the dead woman was, according to Banks, "a complex and interesting killer," what does that make her assassin?
"They study it as a kind of precedent to understand how buildings are made and to understand the kind of space it is because it is a complex and interesting building in a very small site".
"The camp is a complex and interesting mixture of such a divergent range of views – united largely by what it's against, which is a very legitimate anger about the way in which wealth has been distributed and the way in which capitalism is currently seen to benefit just a very few people.
ZnO has been proven to be quite a complex and interesting material with a variety of structures such as nanowires, nanobelts, and tetrapods [4].
This, in turn, has motivated many theoretical investigations of the dynamics of electronic emission for molecules and clusters up to such a complex and interesting system as C60.
Merely comparing modern genera (Equus) with the earliest members of the group (Hyracotherium) may reveal an average increase in size, but this provides a greatly oversimplified view of a complex and interesting pattern.
Cardiac fibers have a quite complex and interesting spatial structure and the myocardial fiber orientation provides a great effort on both cardiac research studies and further clinical applications.
Or it could be that authenticity is a more complex and interesting notion than we tend to acknowledge.
While the February temperatures are set to soar, it's refreshing to know that caffeine can be enjoyed in a cooling, complex and interesting way.
Howard Rosenthal, a political scientist at N.Y.U., wrote to me pointing out that the Times's own detailed map of precinct results shows a more complex and interesting pattern.
The music still plateaus eventually, he says, but at a more complex and interesting level.
