Just returned from short visit to friend in France (STN-RDZ).
Return fare was £19 !
The only negatives were optional matters of personal choice or preference e.g.
-priority boarding (causes chaos/delay and makes little difference in practice)
-tacky (get your scratch cards etc.)
-drinks (rip-off)
-Stansted transfer (expensive but it's not my local airport)
On balance, excellent so long may Ryan continue and expand.