The key as to whether a Whistler scanner may work, vs the possibility that a Uniden SDS series scanner is a better choice really boils down to what systems are in your area. Your profile says "Central Texas". That could be anything from Austin or it's surrounding cities and counties, or up I-35 to the Waco-Temple area, among others. If your county is on trunked system, and one or more of the sites are simulcast, the odds that a Whistler TRX-2 (their top of the line desktop model) will work becomes problematic,
Simulcast issues are extremely location specific. In some cases, it gets down to you might find one specific place in your house it will work, but move it a few feet one way or another and it's reception is hopelessly garbled.
I'm in the DFW area. Once Dallas, both the city as well as the county, transitions to their new P25 Phase II system, then all but the very smallest towns in the metro area will be on a trunked system, most of which have simulcast sites.. I have the TRX-1, the handheld version of the TRX-2. It's hopelessly ineffective on the new system.I had it running for several weeks to record activity as agencies switch to the new system, so that I could identify what new talkgroups were used for. It was set to record any activity it found. I went to review the audio files, and found that they were garbled & useless for what I needed. The coming new system is why I purchased the SDS100 & SDS200. Both handle the new system well. The TRX-1 has been relegated to monitoring conventional & some DMR channels.