First impressions of Sol
He's just a bad champ. This is nothing against Sol, but if he turns like 15 degrees you lose your MS. If he gets hit with almost any CC he loses about 1/4 of your damage (he is the only champ to have his passive shut off by CC and technically one of his abilities). His ult has a really awkward delay and is less useful than your Q (it does like 50 damage more). Your moving over walls can only go in straight lines and you have no way to change your direction after it. And to top it all off his Q response time is really buggy in about the first .25-.75s when it spawns. His AA animation has really weird wind up for no reason. His ult CD really should be like a 100/80/60s ult not a 120/90/60s. It should also have like 50 more base damage per rank. (quite literally the only damage buff I see him needing)
He's fun to play, but there is so much wrong with his kit that there is almost no way he will ever be seen in competitive play in his current state. He has no way to keep himself protected in a fight, he has to keep going in a straight line, and the most important of all he can't fucking hide in bushes. You practically are playing 
that requires people to be stupid to lose to you. Sure you can kind of zone, but your damage is really eh for how projected his kit is. This isn't oh buff his damage kind of thread. No he needs an overhaul of his mechanics. His Q needs to be able to be popped within .25s of launching 100% of the time. His ult needs to not have a really weird delay (it's like a half a second delay). He needs to be able to turn while traveling. And he needs to not have his passive shut off when he is CC'd if it so the sole reason bushs don't hide him. Seriously even Karthus can sit in a bush and nuke you for your HP while you can't see him but Sol hitting you for 100s invisibly every 1s is a problem?
I feel like Riot went and made an awesome champion then decided that the entire viability of the champ is based on how bad the enemy team is.
. You don't just magically lose your passive for being CC'd. Every single champs passive is immune to CC. Why would this be any different? It is passive meaning its always up. If anything he should be stuck in whatever state that he was in. If it was expanded then it's stuck out. If its normal then it stays that way. You can already see the damn thing while he is hidden in a bush. That's already a huge drawback to it.
all have decent damage passives that can't be silenced. This isn't even just about silences. No body else in the game loses their passive while CC'd. And to add insult to injury Sol is the only champ in the game that can't hide in a bush. But don't worry he can go over a wall if you go in a perfectly straight line.
. They don't have any real conditions that the player can control almost at all. They happen on their own. Even if you are stunned. It doesn't matter if the benefit is always going or not it still is something that the player has no control over.
that CCing him would stop his HP regen bonus. It doesn't make any sense when you look at every other champ then look at Sol who already has 1 major drawback for the same ability.
but has less CC overall and his mobility has high limitations.
wat