Let me bump this thread, there might be someone who is experiencing the same doubts.

I have a UBS account in CHF and I'm looking for a solution that minimises cost in terms of:
1) CHF to CHF: IB offers a CHF account if not mistaken, right?

2) CHF denominated products: what is the offer (ETF specifically) in CHF? I would like to avoid any CHF-XXX exchange to minimise the Fx costs and not being exposed to another currency. Any experience here?

3) Guarantee: Who is owning the company? In theory, you buy any kind of product (Stocks, Bonds etc) and the company goes bankrupt, customers should not be affected because they are owner of certain products that can be transferred among banks/brokers. Is the same for IB?