Go for it!
I joined the RAuxAF and, after a year, enjoyed it so much I joined up full-time. It was different from the 3 years TA (infantry) I had experienced prior to this, more relaxed and trade-orientated.
The liability for overseas service should not be viewed lightly. It is a lot different than from when I joined 12 years ago, when our main expectation was to support ever-predictable JMCs - the deployments and losses of RAuxAF sqns underlines this.