I have one of the JT270M rigs (aka Leixen 898). Not a bad radio, but as with all these Chinese rigs, there are issues.
Mine works ok, with one exception...it will not scan VHF and UHF frequencies at the same time, that are stored in memory channels. It will either scan all VHF frequencies, or all UHF frequencies, but not both. Some others have noted this same issue, but I can't tell whether all the radios do this, or if it is a weirdness with just some radios.
Otherwise, it does what it is supposed to do and it is really small. 2x more watts than an HT, but about the same size, with a DTMF mic and mounting bracket. It does have a high power/low power setting.
Audio out of the small speaker is so-so, but usable. Transmit audio is ok, but lacks a bit of bottom end.
I got mine from K1CRA's website, and it included the software and cable. You need a password to run the software and it is listed in a document on the supplied disc... "jet" for user, and "12345678" for the password.
The Leixen software uses "ham" for user, and "89812345" for password. Both versions of the software are otherwise the same.