It sure looks to me that the OP IS doing his homework.
As far as getting what you pay for, I'm sure everyone of us can give an example of a time when we didn't get better quality though we paid more money for a "better" product.
I've been running inexpensive weather stations and logging the data with home grown systems for about 15 years. The first two were an Oregon Scientific WMR-918 and a LaCrosse WS-2316. Both were cheap, but neither failed and both provided useful information for gardening and other purposes.
I'm ready for an update so, after doing my homework, I just ordered an Ambient ws-2902. It appears to be a real bargain: Wireless to the console, WiFi to the router, trivial to connect to Wunderground, and capable of logging with weewx on a Raspberry Pi.
I can afford to buy a Davis VP2, but it would by harder to configure for my purposes and I don't really need the faster refresh and better accuracy.
+1
The question was "Is the Ambient 2902 weather station any good?" Not "Can I get something better if I spend hundreds or thousands?" Answers from people who have no experience with the station in question aren't particularly helpful.
(Ooops, I guess that includes me, I have no experience with an Ambient station either.
But I do like to hear other's experiences without being derided by people who fancy themselves professional meteorologists because they have bigger, better, and more expensive systems. For what it's worth, I have an original VP that's 14 years old, but still isn't up to the standards of the weather station elitists who believe you need fan aspiration, no matter what climate you live in or what you use your station for, and that you need the new super-duper SHT-31 sensor, even though the stupid thing doesn't work at -40 or below.
But then, I'm not seeing any new stations that do work below -40, a major shortcoming, in my opinion. Far more important to me than fan aspiration in the middle of a dark arctic night. I guess I could be missing some.)