Avantages
I think this is a great place if you want to learn and advance your career. The management will look for your strengths and provide you opportunity to advance. You get to see every aspect of job. Albeit, like in all small companies, you can't hide behind computer screen or cubicle. I have been richly rewarded with experience. I was never micromanaged, had all the freedom to suggest new approaches some got implemented some did not. If you just want a desk job, don't bother. The technology is great, product is much loved and has good customer loyalty. Office culture is Texas-friendly.
Inconvénients
You have to be above average in intelligence. Not shy. Customer demands can be little taxing at times. If you are not familiar with commercial construction domain, expect to spend ramp-up time learning the lingo.