Placing the new Metro Pro 1100 next to my older Metro 700, it would be easy to get them confused with one another. They both have the same outward shape and dimensions with nothing written on their exteriors to differentiate them. Outwardly, the 1100 Pro has two larger vents on each side of the light, while the 700 has three smaller vents on each side. The Pro also has a much smaller green-glowing, white-rubberized switch on the top. The charger socket on the 1100 Pro is a Micro USB, where the 700 has a slightly larger and more dated Mini USB. Both have the usual, fussy little rubber plug thingies that sorta cover their USB ports. (Can't somebody come up with something better?) And both came with short, appropriate USB cables for charging. In use, the 1100 Pro seems subjectively perhaps 20/25-percent brighter than the 700 on each comparable setting. The 1100 Pro has four modes in its regular startup mode: low, medium, high, and on with a pulse. The 700 has the same settings, plus a flashing mode. Holding the "on" switch down for 2-seconds enters the secondary modes for both lights. The 1100 Pro adds two flashing modes, a slow modulated pulse, and a low light for walking. The 700 adds only the low walking mode. Additionally on the 1100 Pro, a quick double-press of the switch while the light is operating in normal mode will go directly to "boost" setting, which will give a slightly extra-bright light. Pressing the switch again takes the light back to its last setting. The 1100 Pro seems as well made as the 700, which is a plus. So far, I haven't managed to run the 1100 Pro's still relatively fresh battery dead during a ride, so I can't really comment on battery life. With the longer, late spring days, its made it through two-hours of daylight pulse and high for maybe a half-hour at sunset, though that's not saying much. My experience has been that the 700 is good for only about an hour on high, somewhat more than twice that on the medium or pulsed-on settings, and at least 5/6-hours on the daylight flashing mode. Running either of these lights on a higher setting for a longer period of time, such as for a multi-hour night ride, would require some type of auxiliary USB power. But that's to be expected of any light this size and brightness. The bar clamps for these are easy to install, and I've fit them on both a 7/8" and a 1" bar. The lights are easily removable (as are the mounts). But make sure the light is snapped all the way back into the bar mount if you don't want to leave it on a trail. Whether or not the 1100 Pro justifies the current, almost 100% premium over an older 700 (which are still available as I write this) is a subjective matter. But the 1100 Pro seems to be well-made and fully-featured, and still prices well below most of its competition.
