Oh yes, I'm a huge local school fan. Mine's been fabulous. DS started in 2nd grade when we moved over in April 08 and is now coming to the end of 4th grade, and DD is just finishing her second year of enfantine.
I was all prepared for not-very-well-hidden sighs about what a bother it was, having these totally non-French speaking children in the class, but it was the total opposite. My son's first teacher contacted me by email before we even left the UK to introduce herself, and arranged to meet me and DS in the classroom during the Easter holidays!! so he could meet her, get his bearings and not feel so bewildered on Day One. Both his teachers have had enough English to initially communicate with him - his current teacher is absolutely fluent, which brought its own problems when she decided to translate everything for him and he got into the habit of sitting back and waiting for 'his turn' once she's explained something to the others. Fixed that now, though.
DD's teachers are also terrific, and have clearly enjoyed the professional challenge of having a non-French speaker in their class. (There are quite a lot of FSL speakers in the school, but they've usually at least done playgroup before joining.)
Both kids have had extra French provided by the school, and are now aaaaalmost fluent. My idea of fluent is pretty strict, as my French is quite good so I can hear their small errors of 'translate from English word order', or notice that they don't have a vocab word and have to workaround or describe what they mean.
The other kids have been so kind to them too, including them in games from the first day. I think some of them are under parental orders to hang around the English kids, to see if the language is 'catching'.
Over the two years, I've stopped comparing the Swiss to the UK system and become quite mellow about (a) DD not being able to read properly at age 6, (b) DS not doing one single piece of creative writing in 2 years, (c) no regular parent performances for Christmas, Easter, Harvest Festival, Trafalgar Day, end of term this, that and the other, (d) no assemblies, (e) 5 yr olds going to sleepover camp.
They're very happy, have lots of friends, do tons of gym and amazing handicrafts, walk (scooter) to school alone and DS can pick out a subject group not agreeing with the verb in the 3rd person singular at 50 paces.