To expand on that, Acadian is mediocre at best. They have a few 911 pockets in their Texas operations- East Texas, Llano I think in Central, Pasadena/Webster in the Houston area, and Bexar County/not!-San Antonio- but they aren't really terribly great to work for. Wages are meh, the company itself is infamous for "training" pay rates @ 75% of what you are hired at, non-paid sick days, terrible PTO policies (block-granted at a year), and a solid focus on money. They're not terrible, and they're still better than a lot of their competitors. Given a choice between Acadian and some seedy Houston private like City, I'd choose Acadian. But the purpose of moving to Texas isn't to work for mediocre employers. All things being equal, I'd rather work for AMR than Acadian, because you can make similar money and transfer to a better area.
If you're locked to Austin, look north to Waco (Paramedics Plus, for now) or close-by to San Marcos/Hays County (a great service from what I hear). You've also got Caldwell County (Luling and Lockhart), North Blanco County, AMR-Temple, Fayette County, or Kendall County. All of these places are equal to or better than Acadian. If you've got green on the brain, Acadian San Antonio at least offers 911. But there's better places than Austin. MedStar in Fort Worth is a high-performance, high-volume system great for cutting teeth, as is EMSA in OKC (although MedStar is better IMO). And with a fresh new medic patch, you've got great options. AMR-Abilene has potential, as does Amarillo and UMC-Lubbock. Those smaller places offer you some additional growth potential, should that be your interest, and will balance IFT and 911 (mostly 911). There's also a lot of smaller county and hospital-based services.
If you want to go east, then you've got Houston and some world-class services. Creek, MCHD, HCEC, ESD-48, and some very good ones like Galveston, Cy-Fair, Atascosita, etc. There's a lot of opportunities here. So, where do you want to go?
FWIW, my old partner just moved back to New York and is thrilled with Empress EMS.