Mae'r sioe wedi cael effaith gadarnhaol sylweddol ar economi Cymru ac mae'n cynnig cyfleoedd hyfforddi gwerthfawr ar gyfer y genhedlaeth nesaf o dalent, gyda hyfforddeion yn cael eu cyflogi ar bob cyfres. Bydd y tymor hwn yn cynnig 11 lleoliad arall i hyfforddeion. Ar draws y pedwar tymor, mae dros 60 o rolau wedi'u creu ar gyfer hyfforddeion. At hynny, mae rhai hyfforddeion o gyfresi cynharach hefyd wedi dychwelyd fel criw llawn amser mewn cyfresi dilynol, gan helpu i ddatblygu sylfaen y criw ymhellach yng Nghymru.
The show has had a significant positive impact on the Welsh economy and is providing valuable training opportunities for the next generation of talent, with trainees employed on each series. This season will offer a further 11 trainee placements, and across all 4 seasons, over 60 trainee roles have been created. In addition some trainees from earlier series have also returned as full-time crew in subsequent series, helping to further develop the crew base in Wales.