Don't know about 20 east of Marshall, been too long since I've been there. But in general, 20 has improved much over the years. We've done the 59 route a number of times, and really just south of Marshall was the worst of it. There is construction on the Grand Parkway (right next to where we live about 35 miles north of Houston), and they close the freeway completely some weekends (sometimes they warn, sometimes they don't). And almost every night there are varying lane closures, but that doesn't start until 8pm usually. Otherwise we have no problems with 59.
Ed and Sharon
2010 Wildcat 28RKBS
2011 Ford F-250 XLT, 6.7L PSD
Ride-Rite Airbags and Airlift wireless remote compressor...nice!
I thought I was wrong once, but I was wrong!