Christian Fuchs had become Schalke's third-best left-back behind Aogo and Kolašinac. Although extremely popular with the fans for his character and work rate, there was no place for him in a Schalke team that badly needs a more stable defence, and his departure in this transfer window was inevitable. Schalke had been desperate to sell him last year and were never going to renew his contract.
Fuchs functions best in a 3-5-2, whereas his clear defensive weaknesses can be overlooked in favour of his attacking potential. In the past, his crosses for Huntelaar to score had been fruitful, but these have dried up along with his free-kicks and at 29 he isn't going to regain his pace either.
That said, his all-action style will be a good fit for the Premier League and the move might well provide a much-needed new lease of life for the Austrian captain.
Overall however, Fuchs' transfer to Leicester confirms a recent trend whereby the Bundesliga now only sells to the Premier League players whom German clubs no longer wish to keep, as their performance to wages ratio is no longer acceptable (see also Prödl, Wollscheid, Podolski, Marin etc.).