Advice re. Nimbus 3 OR 4Dt?

I'm just coming back into gliding after a long time grounded and I'm
looking to buy a glider over the winter. A two seater seems a nice idea and

the Nimbus seems to be a lot of glider for the money.

Are they in any way difficult or unpleasant to fly? I know there have been

structural failures due to loss of control.

Are they difficult or heavy to rig?

Maintenance issues? Airframe life issues?

How much would insurance typically cost - a two seater has to cost more
than a single seater?

Is winch launching unwise? Is it best to stick to a tarmac runway?

Any advice greatly appreciated, thanks.