One word of warning right up front - don't eject or insert the SIM card while the unit is on!
The unit is a breeze to setup with all vital info provided on a large label on the port side of the unit. WiFi security and SSID are predefined and okay to use. For the sake of amusing your neighbours, might I suggest:
http://www.reddit.com/r/AskReddit/comments/1dvhp7/whats_the_best_wifi_name_youve_seen/
While WPS is supported, it is turned off by default so a quick visit to the router's config page is required. Both WLAN and WPS have dedicated buttons on the one side of the unit - very handy indeed. The WLAN button activates/deactivates the wireless broadcast while the WPS button controls the WPS broadcast for devices that support it.
On that note, wireless on the unit is not particularly strong. I found in the config that the output power is set by default to 90%. Upping this to 100% hardly improved matters so I personally resorted to a repeating strategy. Hello WPS!
An absolute brilliant range of little devices are the Huawei WS3xx line-up. While other functions are supported, I picked up a few WS322 with the sole intention of repeating my wireless signal.
Key to a good repeating strategy is the central location of the base unit ie. the B593 LTE CPE. The repeaters are then placed at the peripheral of the WiFi range and configured to repeat the WiFi signal. This is quite a simple thing to do, of anyone needs help, just shout.
Since I have quite a large residence, I opted to deploy 3 * WS322 in Repeater Mode. This worked brilliantly but I did notice a few quirks I'm still unsure of. For instance, occasionally I'll get no traffic on the network. Through trial and error I found that by unplugging one or two repeaters, and later plugging them back in, solved the problem. It seems to me that too many WS322 units screws up routing in the network but this is only a hunch. I had an idea that my B593 LTE CPE may be faulty so it has actually been returned and I've got a new one now. I'll report back if this phenomenon persists.
Another oddity I've discovered is that speeds are bets when right up close, or directly connected, to the B593. For instance, my gaming PC is only 1.5 metres away and, while still on wireless, obtains much much better speeds than my phone or tablet. Speedtest have always maintained *not* to test speeds over wireless and I guess this is one of the reasons why.
One major gripe, and Huawei are not alone in this, is that there is no app for controlling the B593. Configuring the unit over a phone is a chore in microfiche efficiency. PLEASE HUAWEI BRING US AN APP FOR THE B593!