The Optimus Nova backpacking stove is a full-featured and durable multi-fuel option. It boasts several unique and convenient features such as a long and flexible fuel line, a flip-stop switch on an all-aluminum fuel pump, and a quick priming burner. The downside to these attributes is a heavy and large stove that is impractical for most recreational backpacking trips. Instead, we believe the Nova is better suited to commercial, institutional, or group (3-plus persons) backpacking trips.
This stove is very similar to MSR Dragonfly ($120). While both of these stoves are expensive and very similar, we recommend the Dragonfly over the Nova because it's $30 cheaper, slightly lighter (1.3oz), slightly faster (15 seconds), easier to use, faster to set up, and it comes with a windscreen. These differences between these stoves are minute, so if you are very drawn to the flip-stop fuel pump, the longer flexible fuel line, or the Nova's slightly more durable build, then the stove is likely to serve you well for years to come.