use the 'weewx-interceptor' driver to talk to the acurite access. that will work with any acurite station that uses the access. that means either the atlas or the 5-in-1.
however, you might not get all of the data available from your station out-of-the-box. the interceptor listens to the packets that the access sends to weather underground, so it can only capture data that your station sends to weather underground. i think the acurite lightning sensor and the battery status are not included in that.
if you want more data, you can use the weewx-sdr driver. for this you must also purchase a usb sdr (about 20$US). this catches the radio signals directly from the atlas or 5-in-1. beware that sdr driver requires considerably more manual setup - you must figure out the sensor names then map those to the database fields. and it does not include a pressure sensor (there is a pressure sensor in the access).
both interceptor and sdr will run reliably - i have systems that have been running them for years with no restarts.