1000P isn't as durable as a lot of people make out though - mixed results over the past year or so, but it is better than most waxes out there (because it's a sealant

)
I'd say the Colli is more durable, offering you a realistic 4-5 months. 1000P seems to be 3-4 depending on application conditions.
Apply a thin layer, leave it for 20 mins then remove. VERY easy to use.
Colli CAN be problematic to remove, but it seems to depend on your particular tin. I have two, and they are slightly different in terms of ease of removal...