What's Wrong With DScaler?

I've been experimenting the past few days capturing with DScaler. I remember seeing a comment once where someone said to NEVER capture with DScaler and I gotta say:
Unlike VDub, DScaler instantly recognizes my Hauppauge USB-Live2 device, there have been ZERO dropped frames and the audio is in perfect sync.
I normally just capture to straight MPEG2 and that is just fine for my needs....but so far the results I'm getting are fantastic.

Format : AVI
Format/Info : Audio Video Interleave
Format profile : OpenDML
File size : 4.62 GiB
Duration : 10mn 14s
Overall bit rate : 64.6 Mbps

Video
ID : 0
Format : Huffman
Codec ID : HFYU
Duration : 10mn 14s
Bit rate : 63.1 Mbps
Width : 720 pixels
Height : 576 pixels
Display aspect ratio : 5:4
Frame rate : 25.000 fps
Standard : PAL
Color space : RGB
Bit depth : 8 bits
Bits/(Pixel*Frame) : 6.081
Stream size : 4.51 GiB (98%)

Audio
ID : 1
Format : PCM
Format settings, Endianness : Little
Format settings, Sign : Signed
Codec ID : 1
Codec ID/Hint : Microsoft
Duration : 10mn 14s
Bit rate mode : Constant
Bit rate : 1 536 Kbps
Channel(s) : 2 channels
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Stream size : 113 MiB (2%)
Interleave, duration : 1000 ms (24.99 video frames)

I then load the AVI into VDub, do some Border Control, some Chroma Smoother and frameserve over to MainConcept Reference to the consumer MPEG2 preset and the quality is fantastic.
What am I missing here?