Fantastic shots, as ever. It's a brilliant area. We did the main Cwm Lledr circuit as a day walk from Crimea Pass just a few weeks ago - we saw one other person all day, on Allt Fawr just before we descended back to the car.
I have the Alta 2 and also a Velez Adventure Light which I got when they first came out. but my usage seems to be different from the two above.
I bought the Alta 2 from Paramo Seconds on Ebay about 3 years ago, primarily as an everyday coat, and it's great for that. I've done day walks in it too, but while there's nothing lacking in its function and protection, personally I don't like using jackets with a hipbelt so I lose access to the lower pockets or the contents interfere with the belt.
I've preferred the Paramo Smock design since I first got an Aspira in 2000, adding the original Velez around 2005, and then the VAL in 2009. And since I got the VAL I can't have used the other two more than a couple of times each. It's my go-to spring to autumn waterproof including my serious winter trips such as to Norway. I've found it every bit as protective as the Aspira even in the worst blizzards, and at barely half the weight and bulk it's also feasible to take it off and carry it if conditions allow. I was concerned how well the lighter fabric would last but it's stood up well for 6 years and still has life left in it (I wouldn't choose it if I went in for climbing). There's a bit of cosmetic wear, and the Velez Adventure with the more robust outer fabric could also be worth considering, trading a bit of weight for extra durability.
I like being able to run a hipbelt under the smock front, I find the ventilation good, and I've not experienced leakage through the zips, nor any problem with the length. In winter I may well be using salopettes so not an issue, but even when I'm not I don't find myself getting particularly wet on account of the length or reaching for overtrousers any more than with anything else I've used.
I've got a Superlite 2 and it definitely comes in on the nail at 250g. It also packs into its own vent rather than having a stuffsac. I've had it since they first came out, which could easily be 4 or 5 years now but from the info above it doesn't look like they've changed the spec.