This is a horse of another color. It will put you on 10 meter SSB (as a note if you get a license, while a Tech can use either LSB or USB in the 200 KHz range mentioned above, long established ham convention always uses USB in this range. Also, Roger beeps and Echo are not used. Doing so would net you some unfriendly responses. Keep your modulation reasonable, the over driven and clipping audio common on CB won't be tolerated by anyone on 10 meters). Unfortunately at the moment, there isn't much activity on 10 meters. During the early winter and early to mid summer there are usually good conditions called Sporadic E which can open both 11 meters and 10 meters quite nicely. On 10 meters, 28.400 USB is mostly used for a "calling frequency", hams will make short contacts with each other or if desired they will move away in frequency a bit to have a longer conversation. There might just be some local activity in your area on 10 meters, many locations do. You are most likely to find activity between 28.315 and 28.500 MHz, although there could be some SSB above 28.500 MHz. According to the manual, the clarifier has enough range to allow you to access "between channels" such as 28.400 as opposed to 28.405 or 28.395.
The 100 watt output is pretty much the standard on HF bands so you would be on par with most stations. A Tech license allows up to 200 watts on 10 meter SSB (or Morse Code). On this band, when it is open, 100 watts is plenty.
Note that without a Ham license this radio is illegal to operate (transmit) on any frequency, including CB. With a Ham license CB operation is still illegal. A few years ago the FCC authorized state governments to draft laws regarding illegal CB equipment and provides them the authority to seize such equipment if caught being operated on the air. Simply owning such equipment without operating it is not unlawful, but if you have your license in the future it is ill advised to use this outside the 10 meter band.