kbaby, it only scores 43% in the which tests.
I'll c&p the blurb they've written about it -
The Adventure is Britax's entry-level model for children from 15 to 36kg (around four to 12 years old). It is secured using the adult seat belt, which also secures the child in position. It's easy to install, with clear instructions and the belt routing is straightforward. The seat offers both good head and leg support.
It gives better side-impact protection than most backless boosters we've seen, but it fails to protect the child sufficiently in a front end collision, with the child being exposed to such high loads the seat only just avoids the Don't Buy status.
Finish quality is good, but the cover is hand wash only - so not as easy to clean as some seats.
Pros: Acceptable side impact protection, easy to install, clear instructions, good finish quality.
Cons: Poor front crash protection, awkward to clean