In reply to Tom Ripley Mountain Guide:
You're right. Will o' the Wisp has been cleaned recently and it's currently in better condition than it has been for some time and so should be a pleasure to climb. It faces south, so gets the sun all day. Because it's in Classic Rock, many people have unrealistic expectations, expecting a 3* route. It's never pretended to be a 3* route, but it's still very worthwhile, with the crux where it should be - at the top.
The route was cleaned about 7 months ago by members of the guidebook team for the forthcoming Climbers' Club new Mid Wales guide. They also cleared the descent path. It'd be nice to think that the Rockfax team are similarly investing time and effort with the Mid Wales routes they're including in the new Rockfax, but age and experience indicates that I may, sadly, be extremely disappointed in this respect.
In contrast, Doom faces NE and doesn't get the sun and it can get quite cold if it's a bit windy. It's also slow to dry, although if the first pitch is dry, then the rest of it should be dry too. Pitch 2, the crux pitch, isn't affected by seepage, unlike pitches 1 and 3, but even if they're wet, it's still usually possible to climb them by avoiding the wet bits. I climbed it (for the fourth time) 2 years ago on a warm, sunny Saturday and we were the only two climbing in the whole valley. It was slightly dirty/ lichenous due to lack of traffic, but perfectly climbable nevertheless and no harder than the grade. I don't think it'll be any different now. It has awesome climbing and positions on a brooding and forbidding cliff; it really deserves its 3 star accolade.
The descent to the right from the top of Doom is via the steep grassy ramp of Llwybr Llywelyn. Once a very well worn path, it's become totally overgrown and is no longer obvious, so care and common sense is required. If in doubt on the lower part of the ramp, keep traversing left (facing out) to find an easy gully to descend the final steeper section - as there's more than one to choose from. Carrying approach shoes up the route for the descent is definitely a very good idea. Abseiling back down the route isn't an option.
Two excellent routes, as good as anything in Snowdonia at the same grade, but sadly neglected. You won't have to queue on either of them. Enjoy.
Dave