Having struggled with a Tonelab LE (complex enough ...), I decided to switch to a ST.
I do not regret my choice: pre-programmed sounds are better than the LE, and the relative simplicity of this model can more quickly reach a better result.
Overall, he spent most of my amps (Fender Champ or Princeton Silverface Silverface) or the sound that the LE.
Simplicity has its downside, however: the interface is perhaps worse than the LE.
But ultimately I found the quality / better price.