Here is what I can tell you having owned a 7watt 445nm striker multimode. The 7 watt is prone to failure as it is not fully proven or refined as of yet. The multimode is in the diode module not the switch, it is a charge sense funtion the requires learning what a half press of a button feels like. The first challenge will be unlocking the safe mode with I think it was 5 half presses in a few seconds, I sent back the module when it failed and went with single function 5 watt module for the ease of ues and better reliability.
The 7 watt has significant divergence and is very hard to focus into a fine point, even with the beam expander. I also really hope you got the eagle OD 6 googles or I will suggest not using the laser at all untill you get laser googles rated for a frequency range that included 445 nm(they will most likely be orange). The batteries may arrive before the laser from a different shipper due to laws about li-ion batteries of larger capacity on planes, look for a box from orb.
Hope you get and enjoy your laser, it requires 2 battery units which had to be requested in ordering and a dual charger they offer is also a good idea. They plan to add carrying cases at a future date. Lastly, I want to say these are not toys by any means and they will cause horrible ocular damage both directly and via reflection. Never point at the sky, never point at people, never point at windowd, basically never point at anything you do not want to harm...well at least till you fully understand the power and focal control.
That is all I can recall, things in Hong Kong have devolved horribly of late (Riots and Fires).